Research article
                    
                        
                             | 
 
                         
                 
             
            22 Feb 2013
         
        
            
                Research article | 
                    
 | 
22 Feb 2013 
             
         
    Diversity pattern of nitrogen fixing microbes in nodules of Trifolium arvense  (L.) at different initial stages of ecosystem development  
        
            S. Schulz ,  M. Engel ,  D. Fischer ,  F. Buegger ,  M. Elmer ,  G. Welzl ,  and M. Schloter  
        
            
            
            
            
            
            
            
    
        
            
        
            
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                                    2,325 
                                    259 
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                                    187 
                                    174 
                        
                                 
                                 
                            
                            
                                HTML: 1,662 
                                PDF: 2,325 
                                XML: 259 
                                Total: 4,246 
                                BibTeX: 187 
                                EndNote: 174 
                             
                            Views and downloads   (calculated since 01 Feb 2013, article published on 21 Sep 2012)
                        
                        
                            
                                
                                    
                                        
                                            
                                            
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                                                        85 
                                                 
                                                
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                                                        20 
                                                        36 
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                                                        59 
                                                 
                                                
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                                                        53 
                                                 
                                                
                                                        Oct 2013 
                                                        24 
                                                        72 
                                                        15 
                                                        111 
                                                 
                                                
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                                                        5 
                                                        84 
                                                 
                                                
                                                        Dec 2013 
                                                        24 
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                                                        6 
                                                        88 
                                                 
                                                
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                                                        28 
                                                 
                                                
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                                                        22 
                                                 
                                                
                                                        Oct 2015 
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                                                        30 
                                                 
                                                
                                                        Nov 2015 
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                                                        11 
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                                                        35 
                                                 
                                                
                                                        Dec 2015 
                                                        7 
                                                        21 
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                                                        Jan 2016 
                                                        29 
                                                        45 
                                                        2 
                                                        76 
                                                 
                                                
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                                                        16 
                                                        36 
                                                        0 
                                                        52 
                                                 
                                                
                                                        Mar 2016 
                                                        14 
                                                        42 
                                                        0 
                                                        56 
                                                 
                                                
                                                        Apr 2016 
                                                        5 
                                                        30 
                                                        0 
                                                        35 
                                                 
                                                
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                                                        9 
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                                                        40 
                                                 
                                                
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                                                        20 
                                                 
                                                
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                                                        22 
                                                 
                                                
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                                                        11 
                                                 
                                                
                                                        Dec 2016 
                                                        5 
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                                                        1 
                                                        14 
                                                 
                                                
                                                        Jan 2017 
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                                                        9 
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                                                        25 
                                                 
                                                
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                                                        28 
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                                                        4 
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                                                        12 
                                                 
                                                
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                                                        2 
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                                                        5 
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                                                        5 
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                                                        13 
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                                                        29 
                                                 
                                                
                                                        Sep 2018 
                                                        12 
                                                        7 
                                                        0 
                                                        19 
                                                 
                                                
                                                        Oct 2018 
                                                        13 
                                                        5 
                                                        2 
                                                        20 
                                                 
                                                
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                                                        10 
                                                        9 
                                                        0 
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                                                        Dec 2018 
                                                        9 
                                                        8 
                                                        0 
                                                        17 
                                                 
                                                
                                                        Jan 2019 
                                                        7 
                                                        5 
                                                        0 
                                                        12 
                                                 
                                                
                                                        Feb 2019 
                                                        4 
                                                        3 
                                                        0 
                                                        7 
                                                 
                                                
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                                                        7 
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                                                        0 
                                                        13 
                                                 
                                                
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                                                        1 
                                                        13 
                                                 
                                                
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                                                        18 
                                                 
                                                
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                                                        2 
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                                                        2 
                                                        6 
                                                        0 
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                                                        11 
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                                                        1 
                                                        20 
                                                 
                                                
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                                                        12 
                                                        5 
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                                                        8 
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                                                        13 
                                                 
                                                
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                                                        25 
                                                        7 
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                                                        35 
                                                 
                                                
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                                                        5 
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                                                        5 
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                                                        3 
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                                                        7 
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                                                        3 
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                                                        11 
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                                                        17 
                                                 
                                                
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                                                        13 
                                                        5 
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                                                        2 
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                                                        9 
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                                                        1 
                                                        17 
                                                 
                                                
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                                                        5 
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                                                        1 
                                                        16 
                                                 
                                                
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                                                        6 
                                                        5 
                                                        0 
                                                        11 
                                                 
                                                
                                                        Aug 2023 
                                                        8 
                                                        4 
                                                        2 
                                                        14 
                                                 
                                                
                                                        Sep 2023 
                                                        6 
                                                        10 
                                                        0 
                                                        16 
                                                 
                                                
                                                        Oct 2023 
                                                        7 
                                                        14 
                                                        1 
                                                        22 
                                                 
                                                
                                                        Nov 2023 
                                                        4 
                                                        1 
                                                        0 
                                                        5 
                                                 
                                                
                                                        Dec 2023 
                                                        9 
                                                        3 
                                                        1 
                                                        13 
                                                 
                                                
                                                        Jan 2024 
                                                        9 
                                                        4 
                                                        0 
                                                        13 
                                                 
                                                
                                                        Feb 2024 
                                                        4 
                                                        5 
                                                        0 
                                                        9 
                                                 
                                                
                                                        Mar 2024 
                                                        7 
                                                        10 
                                                        2 
                                                        19 
                                                 
                                                
                                                        Apr 2024 
                                                        11 
                                                        7 
                                                        1 
                                                        19 
                                                 
                                                
                                                        May 2024 
                                                        19 
                                                        17 
                                                        8 
                                                        44 
                                                 
                                                
                                                        Jun 2024 
                                                        17 
                                                        6 
                                                        2 
                                                        25 
                                                 
                                                
                                                        Jul 2024 
                                                        19 
                                                        5 
                                                        3 
                                                        27 
                                                 
                                                
                                                        Aug 2024 
                                                        38 
                                                        8 
                                                        3 
                                                        49 
                                                 
                                                
                                                        Sep 2024 
                                                        8 
                                                        6 
                                                        0 
                                                        14 
                                                 
                                                
                                                        Oct 2024 
                                                        11 
                                                        3 
                                                        0 
                                                        14 
                                                 
                                                
                                                        Nov 2024 
                                                        7 
                                                        2 
                                                        0 
                                                        9 
                                                 
                                                
                                                        Dec 2024 
                                                        8 
                                                        8 
                                                        0 
                                                        16 
                                                 
                                                
                                                        Jan 2025 
                                                        9 
                                                        11 
                                                        0 
                                                        20 
                                                 
                                                
                                                        Feb 2025 
                                                        18 
                                                        9 
                                                        5 
                                                        32 
                                                 
                                                
                                                        Mar 2025 
                                                        13 
                                                        8 
                                                        1 
                                                        22 
                                                 
                                                
                                                        Apr 2025 
                                                        14 
                                                        6 
                                                        0 
                                                        20 
                                                 
                                                
                                                        May 2025 
                                                        12 
                                                        3 
                                                        0 
                                                        15 
                                                 
                                                
                                                        Jun 2025 
                                                        28 
                                                        8 
                                                        0 
                                                        36 
                                                 
                                                
                                                        Jul 2025 
                                                        19 
                                                        21 
                                                        1 
                                                        41 
                                                 
                                                
                                                        Aug 2025 
                                                        22 
                                                        11 
                                                        3 
                                                        36 
                                                 
                                                
                                                        Sep 2025 
                                                        47 
                                                        10 
                                                        1 
                                                        58 
                                                 
                                                
                                                        Oct 2025 
                                                        29 
                                                        21 
                                                        5 
                                                        55 
                                                 
                                                
                                                        Nov 2025 
                                                        4 
                                                        0 
                                                        4 
                                                 
                        
                                             
                                        
                                     
                                 
                                
                             
                        
                        
                            Cumulative views and downloads  
                                         (calculated since 01 Feb 2013, article published on 21 Sep 2012)
                        
                        
                            
                                
                                    
                                        
                                            
                                            
                                                Month 
                                                HTML views 
                                                PDF downloads 
                                                XML downloads 
                                             
                                             
                                            
                                                
                                                        Feb 2013 
                                                        35 
                                                        44 
                                                        4 
                                                        83 
                                                 
                                                
                                                        Mar 2013 
                                                        53 
                                                        109 
                                                        12 
                                                        174 
                                                 
                                                
                                                        Apr 2013 
                                                        67 
                                                        155 
                                                        18 
                                                        240 
                                                 
                                                
                                                        May 2013 
                                                        81 
                                                        188 
                                                        23 
                                                        292 
                                                 
                                                
                                                        Jun 2013 
                                                        92 
                                                        247 
                                                        27 
                                                        366 
                                                 
                                                
                                                        Jul 2013 
                                                        107 
                                                        310 
                                                        34 
                                                        451 
                                                 
                                                
                                                        Aug 2013 
                                                        127 
                                                        346 
                                                        37 
                                                        510 
                                                 
                                                
                                                        Sep 2013 
                                                        133 
                                                        390 
                                                        40 
                                                        563 
                                                 
                                                
                                                        Oct 2013 
                                                        157 
                                                        462 
                                                        55 
                                                        674 
                                                 
                                                
                                                        Nov 2013 
                                                        175 
                                                        523 
                                                        60 
                                                        758 
                                                 
                                                
                                                        Dec 2013 
                                                        199 
                                                        581 
                                                        66 
                                                        846 
                                                 
                                                
                                                        Jan 2014 
                                                        207 
                                                        638 
                                                        76 
                                                        921 
                                                 
                                                
                                                        Feb 2014 
                                                        226 
                                                        700 
                                                        88 
                                                        1,014 
                                                 
                                                
                                                        Mar 2014 
                                                        252 
                                                        764 
                                                        97 
                                                        1,113 
                                                 
                                                
                                                        Apr 2014 
                                                        269 
                                                        814 
                                                        103 
                                                        1,186 
                                                 
                                                
                                                        May 2014 
                                                        277 
                                                        858 
                                                        105 
                                                        1,240 
                                                 
                                                
                                                        Jun 2014 
                                                        280 
                                                        899 
                                                        108 
                                                        1,287 
                                                 
                                                
                                                        Jul 2014 
                                                        292 
                                                        928 
                                                        111 
                                                        1,331 
                                                 
                                                
                                                        Aug 2014 
                                                        299 
                                                        965 
                                                        113 
                                                        1,377 
                                                 
                                                
                                                        Sep 2014 
                                                        302 
                                                        1,000 
                                                        116 
                                                        1,418 
                                                 
                                                
                                                        Oct 2014 
                                                        308 
                                                        1,034 
                                                        119 
                                                        1,461 
                                                 
                                                
                                                        Nov 2014 
                                                        314 
                                                        1,072 
                                                        121 
                                                        1,507 
                                                 
                                                
                                                        Dec 2014 
                                                        320 
                                                        1,107 
                                                        122 
                                                        1,549 
                                                 
                                                
                                                        Jan 2015 
                                                        326 
                                                        1,119 
                                                        123 
                                                        1,568 
                                                 
                                                
                                                        Feb 2015 
                                                        337 
                                                        1,127 
                                                        124 
                                                        1,588 
                                                 
                                                
                                                        Mar 2015 
                                                        351 
                                                        1,140 
                                                        128 
                                                        1,619 
                                                 
                                                
                                                        Apr 2015 
                                                        365 
                                                        1,152 
                                                        129 
                                                        1,646 
                                                 
                                                
                                                        May 2015 
                                                        368 
                                                        1,166 
                                                        129 
                                                        1,663 
                                                 
                                                
                                                        Jun 2015 
                                                        394 
                                                        1,178 
                                                        132 
                                                        1,704 
                                                 
                                                
                                                        Jul 2015 
                                                        412 
                                                        1,185 
                                                        135 
                                                        1,732 
                                                 
                                                
                                                        Aug 2015 
                                                        418 
                                                        1,218 
                                                        136 
                                                        1,772 
                                                 
                                                
                                                        Sep 2015 
                                                        421 
                                                        1,236 
                                                        137 
                                                        1,794 
                                                 
                                                
                                                        Oct 2015 
                                                        432 
                                                        1,253 
                                                        139 
                                                        1,824 
                                                 
                                                
                                                        Nov 2015 
                                                        454 
                                                        1,264 
                                                        141 
                                                        1,859 
                                                 
                                                
                                                        Dec 2015 
                                                        461 
                                                        1,285 
                                                        144 
                                                        1,890 
                                                 
                                                
                                                        Jan 2016 
                                                        490 
                                                        1,330 
                                                        146 
                                                        1,966 
                                                 
                                                
                                                        Feb 2016 
                                                        506 
                                                        1,366 
                                                        146 
                                                        2,018 
                                                 
                                                
                                                        Mar 2016 
                                                        520 
                                                        1,408 
                                                        146 
                                                        2,074 
                                                 
                                                
                                                        Apr 2016 
                                                        525 
                                                        1,438 
                                                        146 
                                                        2,109 
                                                 
                                                
                                                        May 2016 
                                                        534 
                                                        1,467 
                                                        148 
                                                        2,149 
                                                 
                                                
                                                        Jun 2016 
                                                        551 
                                                        1,473 
                                                        152 
                                                        2,176 
                                                 
                                                
                                                        Jul 2016 
                                                        559 
                                                        1,474 
                                                        156 
                                                        2,189 
                                                 
                                                
                                                        Aug 2016 
                                                        565 
                                                        1,476 
                                                        156 
                                                        2,197 
                                                 
                                                
                                                        Sep 2016 
                                                        576 
                                                        1,483 
                                                        158 
                                                        2,217 
                                                 
                                                
                                                        Oct 2016 
                                                        592 
                                                        1,488 
                                                        159 
                                                        2,239 
                                                 
                                                
                                                        Nov 2016 
                                                        601 
                                                        1,490 
                                                        159 
                                                        2,250 
                                                 
                                                
                                                        Dec 2016 
                                                        606 
                                                        1,498 
                                                        160 
                                                        2,264 
                                                 
                                                
                                                        Jan 2017 
                                                        621 
                                                        1,507 
                                                        161 
                                                        2,289 
                                                 
                                                
                                                        Feb 2017 
                                                        630 
                                                        1,508 
                                                        162 
                                                        2,300 
                                                 
                                                
                                                        Mar 2017 
                                                        648 
                                                        1,526 
                                                        166 
                                                        2,340 
                                                 
                                                
                                                        Apr 2017 
                                                        676 
                                                        1,533 
                                                        168 
                                                        2,377 
                                                 
                                                
                                                        May 2017 
                                                        698 
                                                        1,542 
                                                        169 
                                                        2,409 
                                                 
                                                
                                                        Jun 2017 
                                                        715 
                                                        1,547 
                                                        169 
                                                        2,431 
                                                 
                                                
                                                        Jul 2017 
                                                        726 
                                                        1,560 
                                                        170 
                                                        2,456 
                                                 
                                                
                                                        Aug 2017 
                                                        730 
                                                        1,567 
                                                        171 
                                                        2,468 
                                                 
                                                
                                                        Sep 2017 
                                                        737 
                                                        1,577 
                                                        171 
                                                        2,485 
                                                 
                                                
                                                        Oct 2017 
                                                        739 
                                                        1,588 
                                                        171 
                                                        2,498 
                                                 
                                                
                                                        Nov 2017 
                                                        744 
                                                        1,597 
                                                        171 
                                                        2,512 
                                                 
                                                
                                                        Dec 2017 
                                                        749 
                                                        1,605 
                                                        171 
                                                        2,525 
                                                 
                                                
                                                        Jan 2018 
                                                        756 
                                                        1,616 
                                                        171 
                                                        2,543 
                                                 
                                                
                                                        Feb 2018 
                                                        763 
                                                        1,621 
                                                        171 
                                                        2,555 
                                                 
                                                
                                                        Mar 2018 
                                                        768 
                                                        1,625 
                                                        172 
                                                        2,565 
                                                 
                                                
                                                        Apr 2018 
                                                        772 
                                                        1,630 
                                                        172 
                                                        2,574 
                                                 
                                                
                                                        May 2018 
                                                        778 
                                                        1,641 
                                                        172 
                                                        2,591 
                                                 
                                                
                                                        Jun 2018 
                                                        784 
                                                        1,650 
                                                        172 
                                                        2,606 
                                                 
                                                
                                                        Jul 2018 
                                                        795 
                                                        1,663 
                                                        172 
                                                        2,630 
                                                 
                                                
                                                        Aug 2018 
                                                        808 
                                                        1,679 
                                                        172 
                                                        2,659 
                                                 
                                                
                                                        Sep 2018 
                                                        820 
                                                        1,686 
                                                        172 
                                                        2,678 
                                                 
                                                
                                                        Oct 2018 
                                                        833 
                                                        1,691 
                                                        174 
                                                        2,698 
                                                 
                                                
                                                        Nov 2018 
                                                        843 
                                                        1,700 
                                                        174 
                                                        2,717 
                                                 
                                                
                                                        Dec 2018 
                                                        852 
                                                        1,708 
                                                        174 
                                                        2,734 
                                                 
                                                
                                                        Jan 2019 
                                                        859 
                                                        1,713 
                                                        174 
                                                        2,746 
                                                 
                                                
                                                        Feb 2019 
                                                        863 
                                                        1,716 
                                                        174 
                                                        2,753 
                                                 
                                                
                                                        Mar 2019 
                                                        870 
                                                        1,722 
                                                        174 
                                                        2,766 
                                                 
                                                
                                                        Apr 2019 
                                                        876 
                                                        1,728 
                                                        175 
                                                        2,779 
                                                 
                                                
                                                        May 2019 
                                                        882 
                                                        1,732 
                                                        175 
                                                        2,789 
                                                 
                                                
                                                        Jun 2019 
                                                        890 
                                                        1,739 
                                                        178 
                                                        2,807 
                                                 
                                                
                                                        Jul 2019 
                                                        890 
                                                        1,741 
                                                        178 
                                                        2,809 
                                                 
                                                
                                                        Aug 2019 
                                                        892 
                                                        1,747 
                                                        178 
                                                        2,817 
                                                 
                                                
                                                        Sep 2019 
                                                        894 
                                                        1,752 
                                                        178 
                                                        2,824 
                                                 
                                                
                                                        Oct 2019 
                                                        905 
                                                        1,760 
                                                        179 
                                                        2,844 
                                                 
                                                
                                                        Nov 2019 
                                                        917 
                                                        1,765 
                                                        179 
                                                        2,861 
                                                 
                                                
                                                        Dec 2019 
                                                        925 
                                                        1,770 
                                                        179 
                                                        2,874 
                                                 
                                                
                                                        Jan 2020 
                                                        950 
                                                        1,777 
                                                        182 
                                                        2,909 
                                                 
                                                
                                                        Feb 2020 
                                                        957 
                                                        1,783 
                                                        182 
                                                        2,922 
                                                 
                                                
                                                        Mar 2020 
                                                        964 
                                                        1,787 
                                                        182 
                                                        2,933 
                                                 
                                                
                                                        Apr 2020 
                                                        971 
                                                        1,793 
                                                        184 
                                                        2,948 
                                                 
                                                
                                                        May 2020 
                                                        978 
                                                        1,798 
                                                        185 
                                                        2,961 
                                                 
                                                
                                                        Jun 2020 
                                                        995 
                                                        1,804 
                                                        186 
                                                        2,985 
                                                 
                                                
                                                        Jul 2020 
                                                        1,020 
                                                        1,826 
                                                        196 
                                                        3,042 
                                                 
                                                
                                                        Aug 2020 
                                                        1,024 
                                                        1,842 
                                                        203 
                                                        3,069 
                                                 
                                                
                                                        Sep 2020 
                                                        1,034 
                                                        1,851 
                                                        204 
                                                        3,089 
                                                 
                                                
                                                        Oct 2020 
                                                        1,041 
                                                        1,861 
                                                        205 
                                                        3,107 
                                                 
                                                
                                                        Nov 2020 
                                                        1,045 
                                                        1,869 
                                                        206 
                                                        3,120 
                                                 
                                                
                                                        Dec 2020 
                                                        1,058 
                                                        1,874 
                                                        207 
                                                        3,139 
                                                 
                                                
                                                        Jan 2021 
                                                        1,075 
                                                        1,881 
                                                        208 
                                                        3,164 
                                                 
                                                
                                                        Feb 2021 
                                                        1,082 
                                                        1,883 
                                                        209 
                                                        3,174 
                                                 
                                                
                                                        Mar 2021 
                                                        1,087 
                                                        1,890 
                                                        210 
                                                        3,187 
                                                 
                                                
                                                        Apr 2021 
                                                        1,092 
                                                        1,896 
                                                        210 
                                                        3,198 
                                                 
                                                
                                                        May 2021 
                                                        1,097 
                                                        1,902 
                                                        210 
                                                        3,209 
                                                 
                                                
                                                        Jun 2021 
                                                        1,101 
                                                        1,907 
                                                        211 
                                                        3,219 
                                                 
                                                
                                                        Jul 2021 
                                                        1,102 
                                                        1,914 
                                                        211 
                                                        3,227 
                                                 
                                                
                                                        Aug 2021 
                                                        1,105 
                                                        1,926 
                                                        211 
                                                        3,242 
                                                 
                                                
                                                        Sep 2021 
                                                        1,116 
                                                        1,936 
                                                        211 
                                                        3,263 
                                                 
                                                
                                                        Oct 2021 
                                                        1,119 
                                                        1,963 
                                                        211 
                                                        3,293 
                                                 
                                                
                                                        Nov 2021 
                                                        1,126 
                                                        1,990 
                                                        211 
                                                        3,327 
                                                 
                                                
                                                        Dec 2021 
                                                        1,133 
                                                        1,998 
                                                        211 
                                                        3,342 
                                                 
                                                
                                                        Jan 2022 
                                                        1,144 
                                                        2,003 
                                                        211 
                                                        3,358 
                                                 
                                                
                                                        Feb 2022 
                                                        1,147 
                                                        2,008 
                                                        212 
                                                        3,367 
                                                 
                                                
                                                        Mar 2022 
                                                        1,154 
                                                        2,014 
                                                        212 
                                                        3,380 
                                                 
                                                
                                                        Apr 2022 
                                                        1,156 
                                                        2,018 
                                                        212 
                                                        3,386 
                                                 
                                                
                                                        May 2022 
                                                        1,158 
                                                        2,021 
                                                        213 
                                                        3,392 
                                                 
                                                
                                                        Jun 2022 
                                                        1,164 
                                                        2,029 
                                                        214 
                                                        3,407 
                                                 
                                                
                                                        Jul 2022 
                                                        1,165 
                                                        2,032 
                                                        214 
                                                        3,411 
                                                 
                                                
                                                        Aug 2022 
                                                        1,170 
                                                        2,035 
                                                        214 
                                                        3,419 
                                                 
                                                
                                                        Sep 2022 
                                                        1,173 
                                                        2,037 
                                                        215 
                                                        3,425 
                                                 
                                                
                                                        Oct 2022 
                                                        1,179 
                                                        2,043 
                                                        216 
                                                        3,438 
                                                 
                                                
                                                        Nov 2022 
                                                        1,199 
                                                        2,050 
                                                        216 
                                                        3,465 
                                                 
                                                
                                                        Dec 2022 
                                                        1,205 
                                                        2,060 
                                                        217 
                                                        3,482 
                                                 
                                                
                                                        Jan 2023 
                                                        1,209 
                                                        2,070 
                                                        217 
                                                        3,496 
                                                 
                                                
                                                        Feb 2023 
                                                        1,220 
                                                        2,075 
                                                        218 
                                                        3,513 
                                                 
                                                
                                                        Mar 2023 
                                                        1,233 
                                                        2,080 
                                                        218 
                                                        3,531 
                                                 
                                                
                                                        Apr 2023 
                                                        1,235 
                                                        2,082 
                                                        218 
                                                        3,535 
                                                 
                                                
                                                        May 2023 
                                                        1,244 
                                                        2,089 
                                                        219 
                                                        3,552 
                                                 
                                                
                                                        Jun 2023 
                                                        1,249 
                                                        2,099 
                                                        220 
                                                        3,568 
                                                 
                                                
                                                        Jul 2023 
                                                        1,255 
                                                        2,104 
                                                        220 
                                                        3,579 
                                                 
                                                
                                                        Aug 2023 
                                                        1,263 
                                                        2,108 
                                                        222 
                                                        3,593 
                                                 
                                                
                                                        Sep 2023 
                                                        1,269 
                                                        2,118 
                                                        222 
                                                        3,609 
                                                 
                                                
                                                        Oct 2023 
                                                        1,276 
                                                        2,132 
                                                        223 
                                                        3,631 
                                                 
                                                
                                                        Nov 2023 
                                                        1,280 
                                                        2,133 
                                                        223 
                                                        3,636 
                                                 
                                                
                                                        Dec 2023 
                                                        1,289 
                                                        2,136 
                                                        224 
                                                        3,649 
                                                 
                                                
                                                        Jan 2024 
                                                        1,298 
                                                        2,140 
                                                        224 
                                                        3,662 
                                                 
                                                
                                                        Feb 2024 
                                                        1,302 
                                                        2,145 
                                                        224 
                                                        3,671 
                                                 
                                                
                                                        Mar 2024 
                                                        1,309 
                                                        2,155 
                                                        226 
                                                        3,690 
                                                 
                                                
                                                        Apr 2024 
                                                        1,320 
                                                        2,162 
                                                        227 
                                                        3,709 
                                                 
                                                
                                                        May 2024 
                                                        1,339 
                                                        2,179 
                                                        235 
                                                        3,753 
                                                 
                                                
                                                        Jun 2024 
                                                        1,356 
                                                        2,185 
                                                        237 
                                                        3,778 
                                                 
                                                
                                                        Jul 2024 
                                                        1,375 
                                                        2,190 
                                                        240 
                                                        3,805 
                                                 
                                                
                                                        Aug 2024 
                                                        1,413 
                                                        2,198 
                                                        243 
                                                        3,854 
                                                 
                                                
                                                        Sep 2024 
                                                        1,421 
                                                        2,204 
                                                        243 
                                                        3,868 
                                                 
                                                
                                                        Oct 2024 
                                                        1,432 
                                                        2,207 
                                                        243 
                                                        3,882 
                                                 
                                                
                                                        Nov 2024 
                                                        1,439 
                                                        2,209 
                                                        243 
                                                        3,891 
                                                 
                                                
                                                        Dec 2024 
                                                        1,447 
                                                        2,217 
                                                        243 
                                                        3,907 
                                                 
                                                
                                                        Jan 2025 
                                                        1,456 
                                                        2,228 
                                                        243 
                                                        3,927 
                                                 
                                                
                                                        Feb 2025 
                                                        1,474 
                                                        2,237 
                                                        248 
                                                        3,959 
                                                 
                                                
                                                        Mar 2025 
                                                        1,487 
                                                        2,245 
                                                        249 
                                                        3,981 
                                                 
                                                
                                                        Apr 2025 
                                                        1,501 
                                                        2,251 
                                                        249 
                                                        4,001 
                                                 
                                                
                                                        May 2025 
                                                        1,513 
                                                        2,254 
                                                        249 
                                                        4,016 
                                                 
                                                
                                                        Jun 2025 
                                                        1,541 
                                                        2,262 
                                                        249 
                                                        4,052 
                                                 
                                                
                                                        Jul 2025 
                                                        1,560 
                                                        2,283 
                                                        250 
                                                        4,093 
                                                 
                                                
                                                        Aug 2025 
                                                        1,582 
                                                        2,294 
                                                        253 
                                                        4,129 
                                                 
                                                
                                                        Sep 2025 
                                                        1,629 
                                                        2,304 
                                                        254 
                                                        4,187 
                                                 
                                                
                                                        Oct 2025 
                                                        1,658 
                                                        2,325 
                                                        259 
                                                        4,242 
                                                 
                                                
                                                        Nov 2025 
                                                        1,662 
                                                        2,325 
                                                        259 
                                                        4,246 
                                                 
                                             
                                        
                                     
                                 
                             
                     
        
                    
                    
                        
                            Total article views: 3,385  (including HTML, PDF, and XML)
                        
                            
                                
                                
                                    HTML 
                                    PDF 
                                    XML 
                                    Total 
                                    BibTeX 
                                    EndNote 
                        
                                 
                                
                                    1,389 
                                    1,823 
                                    173 
                                    3,385 
                                    166 
                                    171 
                        
                                 
                                 
                            
                            
                                HTML: 1,389 
                                PDF: 1,823 
                                XML: 173 
                                Total: 3,385 
                                BibTeX: 166 
                                EndNote: 171 
                             
                            Views and downloads   (calculated since 22 Feb 2013)
                        
                        
                            
                                
                                    
                                        
                                            
                                            
                                                Month 
                                                HTML 
                                                PDF 
                                                XML 
                                                Total 
                                             
                                             
                                            
                                                
                                                        Feb 2013 
                                                        22 
                                                        28 
                                                        1 
                                                        51 
                                                 
                                                
                                                        Mar 2013 
                                                        15 
                                                        56 
                                                        4 
                                                        75 
                                                 
                                                
                                                        Apr 2013 
                                                        12 
                                                        35 
                                                        4 
                                                        51 
                                                 
                                                
                                                        May 2013 
                                                        8 
                                                        26 
                                                        4 
                                                        38 
                                                 
                                                
                                                        Jun 2013 
                                                        8 
                                                        41 
                                                        2 
                                                        51 
                                                 
                                                
                                                        Jul 2013 
                                                        14 
                                                        55 
                                                        5 
                                                        74 
                                                 
                                                
                                                        Aug 2013 
                                                        16 
                                                        30 
                                                        2 
                                                        48 
                                                 
                                                
                                                        Sep 2013 
                                                        5 
                                                        35 
                                                        2 
                                                        42 
                                                 
                                                
                                                        Oct 2013 
                                                        22 
                                                        65 
                                                        14 
                                                        101 
                                                 
                                                
                                                        Nov 2013 
                                                        17 
                                                        51 
                                                        2 
                                                        70 
                                                 
                                                
                                                        Dec 2013 
                                                        17 
                                                        48 
                                                        5 
                                                        70 
                                                 
                                                
                                                        Jan 2014 
                                                        7 
                                                        49 
                                                        7 
                                                        63 
                                                 
                                                
                                                        Feb 2014 
                                                        12 
                                                        52 
                                                        7 
                                                        71 
                                                 
                                                
                                                        Mar 2014 
                                                        16 
                                                        58 
                                                        5 
                                                        79 
                                                 
                                                
                                                        Apr 2014 
                                                        11 
                                                        38 
                                                        3 
                                                        52 
                                                 
                                                
                                                        May 2014 
                                                        7 
                                                        34 
                                                        1 
                                                        42 
                                                 
                                                
                                                        Jun 2014 
                                                        3 
                                                        31 
                                                        0 
                                                        34 
                                                 
                                                
                                                        Jul 2014 
                                                        10 
                                                        20 
                                                        1 
                                                        31 
                                                 
                                                
                                                        Aug 2014 
                                                        6 
                                                        30 
                                                        1 
                                                        37 
                                                 
                                                
                                                        Sep 2014 
                                                        3 
                                                        27 
                                                        0 
                                                        30 
                                                 
                                                
                                                        Oct 2014 
                                                        6 
                                                        29 
                                                        1 
                                                        36 
                                                 
                                                
                                                        Nov 2014 
                                                        4 
                                                        32 
                                                        0 
                                                        36 
                                                 
                                                
                                                        Dec 2014 
                                                        6 
                                                        27 
                                                        0 
                                                        33 
                                                 
                                                
                                                        Jan 2015 
                                                        6 
                                                        10 
                                                        0 
                                                        16 
                                                 
                                                
                                                        Feb 2015 
                                                        10 
                                                        2 
                                                        0 
                                                        12 
                                                 
                                                
                                                        Mar 2015 
                                                        14 
                                                        5 
                                                        1 
                                                        20 
                                                 
                                                
                                                        Apr 2015 
                                                        11 
                                                        3 
                                                        0 
                                                        14 
                                                 
                                                
                                                        May 2015 
                                                        1 
                                                        7 
                                                        0 
                                                        8 
                                                 
                                                
                                                        Jun 2015 
                                                        22 
                                                        9 
                                                        0 
                                                        31 
                                                 
                                                
                                                        Jul 2015 
                                                        11 
                                                        7 
                                                        3 
                                                        21 
                                                 
                                                
                                                        Aug 2015 
                                                        4 
                                                        20 
                                                        0 
                                                        24 
                                                 
                                                
                                                        Sep 2015 
                                                        3 
                                                        9 
                                                        0 
                                                        12 
                                                 
                                                
                                                        Oct 2015 
                                                        7 
                                                        9 
                                                        1 
                                                        17 
                                                 
                                                
                                                        Nov 2015 
                                                        14 
                                                        6 
                                                        1 
                                                        21 
                                                 
                                                
                                                        Dec 2015 
                                                        7 
                                                        21 
                                                        0 
                                                        28 
                                                 
                                                
                                                        Jan 2016 
                                                        19 
                                                        41 
                                                        0 
                                                        60 
                                                 
                                                
                                                        Feb 2016 
                                                        8 
                                                        33 
                                                        0 
                                                        41 
                                                 
                                                
                                                        Mar 2016 
                                                        8 
                                                        40 
                                                        0 
                                                        48 
                                                 
                                                
                                                        Apr 2016 
                                                        1 
                                                        30 
                                                        0 
                                                        31 
                                                 
                                                
                                                        May 2016 
                                                        6 
                                                        26 
                                                        2 
                                                        34 
                                                 
                                                
                                                        Jun 2016 
                                                        14 
                                                        4 
                                                        4 
                                                        22 
                                                 
                                                
                                                        Jul 2016 
                                                        5 
                                                        1 
                                                        1 
                                                        7 
                                                 
                                                
                                                        Aug 2016 
                                                        4 
                                                        0 
                                                        4 
                                                 
                                                
                                                        Sep 2016 
                                                        7 
                                                        7 
                                                        2 
                                                        16 
                                                 
                                                
                                                        Oct 2016 
                                                        13 
                                                        4 
                                                        0 
                                                        17 
                                                 
                                                
                                                        Nov 2016 
                                                        5 
                                                        2 
                                                        0 
                                                        7 
                                                 
                                                
                                                        Dec 2016 
                                                        4 
                                                        7 
                                                        1 
                                                        12 
                                                 
                                                
                                                        Jan 2017 
                                                        10 
                                                        8 
                                                        1 
                                                        19 
                                                 
                                                
                                                        Feb 2017 
                                                        6 
                                                        1 
                                                        1 
                                                        8 
                                                 
                                                
                                                        Mar 2017 
                                                        12 
                                                        15 
                                                        4 
                                                        31 
                                                 
                                                
                                                        Apr 2017 
                                                        18 
                                                        5 
                                                        1 
                                                        24 
                                                 
                                                
                                                        May 2017 
                                                        14 
                                                        9 
                                                        1 
                                                        24 
                                                 
                                                
                                                        Jun 2017 
                                                        12 
                                                        5 
                                                        0 
                                                        17 
                                                 
                                                
                                                        Jul 2017 
                                                        8 
                                                        12 
                                                        1 
                                                        21 
                                                 
                                                
                                                        Aug 2017 
                                                        3 
                                                        6 
                                                        1 
                                                        10 
                                                 
                                                
                                                        Sep 2017 
                                                        5 
                                                        9 
                                                        0 
                                                        14 
                                                 
                                                
                                                        Oct 2017 
                                                        2 
                                                        9 
                                                        0 
                                                        11 
                                                 
                                                
                                                        Nov 2017 
                                                        3 
                                                        8 
                                                        0 
                                                        11 
                                                 
                                                
                                                        Dec 2017 
                                                        2 
                                                        6 
                                                        0 
                                                        8 
                                                 
                                                
                                                        Jan 2018 
                                                        6 
                                                        9 
                                                        0 
                                                        15 
                                                 
                                                
                                                        Feb 2018 
                                                        4 
                                                        5 
                                                        0 
                                                        9 
                                                 
                                                
                                                        Mar 2018 
                                                        4 
                                                        3 
                                                        0 
                                                        7 
                                                 
                                                
                                                        Apr 2018 
                                                        3 
                                                        3 
                                                        0 
                                                        6 
                                                 
                                                
                                                        May 2018 
                                                        4 
                                                        8 
                                                        0 
                                                        12 
                                                 
                                                
                                                        Jun 2018 
                                                        5 
                                                        8 
                                                        0 
                                                        13 
                                                 
                                                
                                                        Jul 2018 
                                                        10 
                                                        12 
                                                        0 
                                                        22 
                                                 
                                                
                                                        Aug 2018 
                                                        8 
                                                        13 
                                                        0 
                                                        21 
                                                 
                                                
                                                        Sep 2018 
                                                        11 
                                                        5 
                                                        0 
                                                        16 
                                                 
                                                
                                                        Oct 2018 
                                                        9 
                                                        4 
                                                        2 
                                                        15 
                                                 
                                                
                                                        Nov 2018 
                                                        7 
                                                        7 
                                                        0 
                                                        14 
                                                 
                                                
                                                        Dec 2018 
                                                        7 
                                                        5 
                                                        0 
                                                        12 
                                                 
                                                
                                                        Jan 2019 
                                                        3 
                                                        4 
                                                        0 
                                                        7 
                                                 
                                                
                                                        Feb 2019 
                                                        2 
                                                        2 
                                                        0 
                                                        4 
                                                 
                                                
                                                        Mar 2019 
                                                        2 
                                                        3 
                                                        0 
                                                        5 
                                                 
                                                
                                                        Apr 2019 
                                                        3 
                                                        5 
                                                        0 
                                                        8 
                                                 
                                                
                                                        May 2019 
                                                        4 
                                                        4 
                                                        0 
                                                        8 
                                                 
                                                
                                                        Jun 2019 
                                                        7 
                                                        5 
                                                        1 
                                                        13 
                                                 
                                                
                                                        Jul 2019 
                                                        2 
                                                        0 
                                                        2 
                                                 
                                                
                                                        Aug 2019 
                                                        1 
                                                        5 
                                                        0 
                                                        6 
                                                 
                                                
                                                        Sep 2019 
                                                        2 
                                                        4 
                                                        0 
                                                        6 
                                                 
                                                
                                                        Oct 2019 
                                                        7 
                                                        5 
                                                        1 
                                                        13 
                                                 
                                                
                                                        Nov 2019 
                                                        11 
                                                        4 
                                                        0 
                                                        15 
                                                 
                                                
                                                        Dec 2019 
                                                        8 
                                                        4 
                                                        0 
                                                        12 
                                                 
                                                
                                                        Jan 2020 
                                                        25 
                                                        7 
                                                        3 
                                                        35 
                                                 
                                                
                                                        Feb 2020 
                                                        7 
                                                        4 
                                                        0 
                                                        11 
                                                 
                                                
                                                        Mar 2020 
                                                        7 
                                                        4 
                                                        0 
                                                        11 
                                                 
                                                
                                                        Apr 2020 
                                                        6 
                                                        6 
                                                        2 
                                                        14 
                                                 
                                                
                                                        May 2020 
                                                        6 
                                                        3 
                                                        1 
                                                        10 
                                                 
                                                
                                                        Jun 2020 
                                                        11 
                                                        6 
                                                        1 
                                                        18 
                                                 
                                                
                                                        Jul 2020 
                                                        17 
                                                        18 
                                                        5 
                                                        40 
                                                 
                                                
                                                        Aug 2020 
                                                        4 
                                                        12 
                                                        4 
                                                        20 
                                                 
                                                
                                                        Sep 2020 
                                                        10 
                                                        7 
                                                        1 
                                                        18 
                                                 
                                                
                                                        Oct 2020 
                                                        7 
                                                        7 
                                                        1 
                                                        15 
                                                 
                                                
                                                        Nov 2020 
                                                        4 
                                                        8 
                                                        1 
                                                        13 
                                                 
                                                
                                                        Dec 2020 
                                                        13 
                                                        3 
                                                        1 
                                                        17 
                                                 
                                                
                                                        Jan 2021 
                                                        16 
                                                        4 
                                                        1 
                                                        21 
                                                 
                                                
                                                        Feb 2021 
                                                        7 
                                                        1 
                                                        1 
                                                        9 
                                                 
                                                
                                                        Mar 2021 
                                                        4 
                                                        4 
                                                        1 
                                                        9 
                                                 
                                                
                                                        Apr 2021 
                                                        4 
                                                        3 
                                                        0 
                                                        7 
                                                 
                                                
                                                        May 2021 
                                                        4 
                                                        4 
                                                        0 
                                                        8 
                                                 
                                                
                                                        Jun 2021 
                                                        4 
                                                        2 
                                                        1 
                                                        7 
                                                 
                                                
                                                        Jul 2021 
                                                        1 
                                                        6 
                                                        0 
                                                        7 
                                                 
                                                
                                                        Aug 2021 
                                                        3 
                                                        7 
                                                        0 
                                                        10 
                                                 
                                                
                                                        Sep 2021 
                                                        11 
                                                        6 
                                                        0 
                                                        17 
                                                 
                                                
                                                        Oct 2021 
                                                        3 
                                                        26 
                                                        0 
                                                        29 
                                                 
                                                
                                                        Nov 2021 
                                                        7 
                                                        23 
                                                        0 
                                                        30 
                                                 
                                                
                                                        Dec 2021 
                                                        7 
                                                        4 
                                                        0 
                                                        11 
                                                 
                                                
                                                        Jan 2022 
                                                        11 
                                                        3 
                                                        0 
                                                        14 
                                                 
                                                
                                                        Feb 2022 
                                                        3 
                                                        4 
                                                        1 
                                                        8 
                                                 
                                                
                                                        Mar 2022 
                                                        7 
                                                        6 
                                                        0 
                                                        13 
                                                 
                                                
                                                        Apr 2022 
                                                        2 
                                                        2 
                                                        0 
                                                        4 
                                                 
                                                
                                                        May 2022 
                                                        2 
                                                        1 
                                                        1 
                                                        4 
                                                 
                                                
                                                        Jun 2022 
                                                        6 
                                                        3 
                                                        1 
                                                        10 
                                                 
                                                
                                                        Jul 2022 
                                                        1 
                                                        3 
                                                        0 
                                                        4 
                                                 
                                                
                                                        Aug 2022 
                                                        5 
                                                        1 
                                                        0 
                                                        6 
                                                 
                                                
                                                        Sep 2022 
                                                        3 
                                                        1 
                                                        1 
                                                        5 
                                                 
                                                
                                                        Oct 2022 
                                                        6 
                                                        3 
                                                        1 
                                                        10 
                                                 
                                                
                                                        Nov 2022 
                                                        20 
                                                        1 
                                                        0 
                                                        21 
                                                 
                                                
                                                        Dec 2022 
                                                        6 
                                                        5 
                                                        1 
                                                        12 
                                                 
                                                
                                                        Jan 2023 
                                                        4 
                                                        7 
                                                        0 
                                                        11 
                                                 
                                                
                                                        Feb 2023 
                                                        11 
                                                        4 
                                                        1 
                                                        16 
                                                 
                                                
                                                        Mar 2023 
                                                        13 
                                                        1 
                                                        0 
                                                        14 
                                                 
                                                
                                                        Apr 2023 
                                                        2 
                                                        2 
                                                        0 
                                                        4 
                                                 
                                                
                                                        May 2023 
                                                        9 
                                                        5 
                                                        1 
                                                        15 
                                                 
                                                
                                                        Jun 2023 
                                                        5 
                                                        9 
                                                        1 
                                                        15 
                                                 
                                                
                                                        Jul 2023 
                                                        6 
                                                        2 
                                                        0 
                                                        8 
                                                 
                                                
                                                        Aug 2023 
                                                        8 
                                                        3 
                                                        2 
                                                        13 
                                                 
                                                
                                                        Sep 2023 
                                                        6 
                                                        5 
                                                        0 
                                                        11 
                                                 
                                                
                                                        Oct 2023 
                                                        7 
                                                        9 
                                                        1 
                                                        17 
                                                 
                                                
                                                        Nov 2023 
                                                        4 
                                                        1 
                                                        0 
                                                        5 
                                                 
                                                
                                                        Dec 2023 
                                                        9 
                                                        2 
                                                        1 
                                                        12 
                                                 
                                                
                                                        Jan 2024 
                                                        9 
                                                        4 
                                                        0 
                                                        13 
                                                 
                                                
                                                        Feb 2024 
                                                        4 
                                                        5 
                                                        0 
                                                        9 
                                                 
                                                
                                                        Mar 2024 
                                                        7 
                                                        8 
                                                        2 
                                                        17 
                                                 
                                                
                                                        Apr 2024 
                                                        11 
                                                        5 
                                                        1 
                                                        17 
                                                 
                                                
                                                        May 2024 
                                                        19 
                                                        15 
                                                        8 
                                                        42 
                                                 
                                                
                                                        Jun 2024 
                                                        17 
                                                        2 
                                                        2 
                                                        21 
                                                 
                                                
                                                        Jul 2024 
                                                        19 
                                                        3 
                                                        3 
                                                        25 
                                                 
                                                
                                                        Aug 2024 
                                                        37 
                                                        6 
                                                        3 
                                                        46 
                                                 
                                                
                                                        Sep 2024 
                                                        8 
                                                        3 
                                                        0 
                                                        11 
                                                 
                                                
                                                        Oct 2024 
                                                        11 
                                                        2 
                                                        0 
                                                        13 
                                                 
                                                
                                                        Nov 2024 
                                                        6 
                                                        1 
                                                        0 
                                                        7 
                                                 
                                                
                                                        Dec 2024 
                                                        8 
                                                        4 
                                                        0 
                                                        12 
                                                 
                                                
                                                        Jan 2025 
                                                        9 
                                                        5 
                                                        0 
                                                        14 
                                                 
                                                
                                                        Feb 2025 
                                                        18 
                                                        6 
                                                        5 
                                                        29 
                                                 
                                                
                                                        Mar 2025 
                                                        13 
                                                        7 
                                                        1 
                                                        21 
                                                 
                                                
                                                        Apr 2025 
                                                        14 
                                                        4 
                                                        0 
                                                        18 
                                                 
                                                
                                                        May 2025 
                                                        12 
                                                        2 
                                                        0 
                                                        14 
                                                 
                                                
                                                        Jun 2025 
                                                        28 
                                                        7 
                                                        0 
                                                        35 
                                                 
                                                
                                                        Jul 2025 
                                                        19 
                                                        19 
                                                        1 
                                                        39 
                                                 
                                                
                                                        Aug 2025 
                                                        22 
                                                        10 
                                                        3 
                                                        35 
                                                 
                                                
                                                        Sep 2025 
                                                        47 
                                                        7 
                                                        1 
                                                        55 
                                                 
                                                
                                                        Oct 2025 
                                                        29 
                                                        18 
                                                        5 
                                                        52 
                                                 
                                                
                                                        Nov 2025 
                                                        4 
                                                        0 
                                                        4 
                                                 
                        
                                             
                                        
                                     
                                 
                                
                             
                        
                        
                            Cumulative views and downloads  
                                         (calculated since 22 Feb 2013)
                        
                        
                            
                                
                                    
                                        
                                            
                                            
                                                Month 
                                                HTML views 
                                                PDF downloads 
                                                XML downloads 
                                             
                                             
                                            
                                                
                                                        Feb 2013 
                                                        22 
                                                        28 
                                                        1 
                                                 
                                                
                                                        Mar 2013 
                                                        37 
                                                        84 
                                                        5 
                                                 
                                                
                                                        Apr 2013 
                                                        49 
                                                        119 
                                                        9 
                                                 
                                                
                                                        May 2013 
                                                        57 
                                                        145 
                                                        13 
                                                 
                                                
                                                        Jun 2013 
                                                        65 
                                                        186 
                                                        15 
                                                 
                                                
                                                        Jul 2013 
                                                        79 
                                                        241 
                                                        20 
                                                 
                                                
                                                        Aug 2013 
                                                        95 
                                                        271 
                                                        22 
                                                 
                                                
                                                        Sep 2013 
                                                        100 
                                                        306 
                                                        24 
                                                 
                                                
                                                        Oct 2013 
                                                        122 
                                                        371 
                                                        38 
                                                 
                                                
                                                        Nov 2013 
                                                        139 
                                                        422 
                                                        40 
                                                 
                                                
                                                        Dec 2013 
                                                        156 
                                                        470 
                                                        45 
                                                 
                                                
                                                        Jan 2014 
                                                        163 
                                                        519 
                                                        52 
                                                 
                                                
                                                        Feb 2014 
                                                        175 
                                                        571 
                                                        59 
                                                 
                                                
                                                        Mar 2014 
                                                        191 
                                                        629 
                                                        64 
                                                 
                                                
                                                        Apr 2014 
                                                        202 
                                                        667 
                                                        67 
                                                 
                                                
                                                        May 2014 
                                                        209 
                                                        701 
                                                        68 
                                                 
                                                
                                                        Jun 2014 
                                                        212 
                                                        732 
                                                        68 
                                                 
                                                
                                                        Jul 2014 
                                                        222 
                                                        752 
                                                        69 
                                                 
                                                
                                                        Aug 2014 
                                                        228 
                                                        782 
                                                        70 
                                                 
                                                
                                                        Sep 2014 
                                                        231 
                                                        809 
                                                        70 
                                                 
                                                
                                                        Oct 2014 
                                                        237 
                                                        838 
                                                        71 
                                                 
                                                
                                                        Nov 2014 
                                                        241 
                                                        870 
                                                        71 
                                                 
                                                
                                                        Dec 2014 
                                                        247 
                                                        897 
                                                        71 
                                                 
                                                
                                                        Jan 2015 
                                                        253 
                                                        907 
                                                        71 
                                                 
                                                
                                                        Feb 2015 
                                                        263 
                                                        909 
                                                        71 
                                                 
                                                
                                                        Mar 2015 
                                                        277 
                                                        914 
                                                        72 
                                                 
                                                
                                                        Apr 2015 
                                                        288 
                                                        917 
                                                        72 
                                                 
                                                
                                                        May 2015 
                                                        289 
                                                        924 
                                                        72 
                                                 
                                                
                                                        Jun 2015 
                                                        311 
                                                        933 
                                                        72 
                                                 
                                                
                                                        Jul 2015 
                                                        322 
                                                        940 
                                                        75 
                                                 
                                                
                                                        Aug 2015 
                                                        326 
                                                        960 
                                                        75 
                                                 
                                                
                                                        Sep 2015 
                                                        329 
                                                        969 
                                                        75 
                                                 
                                                
                                                        Oct 2015 
                                                        336 
                                                        978 
                                                        76 
                                                 
                                                
                                                        Nov 2015 
                                                        350 
                                                        984 
                                                        77 
                                                 
                                                
                                                        Dec 2015 
                                                        357 
                                                        1,005 
                                                        77 
                                                 
                                                
                                                        Jan 2016 
                                                        376 
                                                        1,046 
                                                        77 
                                                 
                                                
                                                        Feb 2016 
                                                        384 
                                                        1,079 
                                                        77 
                                                 
                                                
                                                        Mar 2016 
                                                        392 
                                                        1,119 
                                                        77 
                                                 
                                                
                                                        Apr 2016 
                                                        393 
                                                        1,149 
                                                        77 
                                                 
                                                
                                                        May 2016 
                                                        399 
                                                        1,175 
                                                        79 
                                                 
                                                
                                                        Jun 2016 
                                                        413 
                                                        1,179 
                                                        83 
                                                 
                                                
                                                        Jul 2016 
                                                        418 
                                                        1,180 
                                                        84 
                                                 
                                                
                                                        Aug 2016 
                                                        422 
                                                        1,180 
                                                        84 
                                                 
                                                
                                                        Sep 2016 
                                                        429 
                                                        1,187 
                                                        86 
                                                 
                                                
                                                        Oct 2016 
                                                        442 
                                                        1,191 
                                                        86 
                                                 
                                                
                                                        Nov 2016 
                                                        447 
                                                        1,193 
                                                        86 
                                                 
                                                
                                                        Dec 2016 
                                                        451 
                                                        1,200 
                                                        87 
                                                 
                                                
                                                        Jan 2017 
                                                        461 
                                                        1,208 
                                                        88 
                                                 
                                                
                                                        Feb 2017 
                                                        467 
                                                        1,209 
                                                        89 
                                                 
                                                
                                                        Mar 2017 
                                                        479 
                                                        1,224 
                                                        93 
                                                 
                                                
                                                        Apr 2017 
                                                        497 
                                                        1,229 
                                                        94 
                                                 
                                                
                                                        May 2017 
                                                        511 
                                                        1,238 
                                                        95 
                                                 
                                                
                                                        Jun 2017 
                                                        523 
                                                        1,243 
                                                        95 
                                                 
                                                
                                                        Jul 2017 
                                                        531 
                                                        1,255 
                                                        96 
                                                 
                                                
                                                        Aug 2017 
                                                        534 
                                                        1,261 
                                                        97 
                                                 
                                                
                                                        Sep 2017 
                                                        539 
                                                        1,270 
                                                        97 
                                                 
                                                
                                                        Oct 2017 
                                                        541 
                                                        1,279 
                                                        97 
                                                 
                                                
                                                        Nov 2017 
                                                        544 
                                                        1,287 
                                                        97 
                                                 
                                                
                                                        Dec 2017 
                                                        546 
                                                        1,293 
                                                        97 
                                                 
                                                
                                                        Jan 2018 
                                                        552 
                                                        1,302 
                                                        97 
                                                 
                                                
                                                        Feb 2018 
                                                        556 
                                                        1,307 
                                                        97 
                                                 
                                                
                                                        Mar 2018 
                                                        560 
                                                        1,310 
                                                        97 
                                                 
                                                
                                                        Apr 2018 
                                                        563 
                                                        1,313 
                                                        97 
                                                 
                                                
                                                        May 2018 
                                                        567 
                                                        1,321 
                                                        97 
                                                 
                                                
                                                        Jun 2018 
                                                        572 
                                                        1,329 
                                                        97 
                                                 
                                                
                                                        Jul 2018 
                                                        582 
                                                        1,341 
                                                        97 
                                                 
                                                
                                                        Aug 2018 
                                                        590 
                                                        1,354 
                                                        97 
                                                 
                                                
                                                        Sep 2018 
                                                        601 
                                                        1,359 
                                                        97 
                                                 
                                                
                                                        Oct 2018 
                                                        610 
                                                        1,363 
                                                        99 
                                                 
                                                
                                                        Nov 2018 
                                                        617 
                                                        1,370 
                                                        99 
                                                 
                                                
                                                        Dec 2018 
                                                        624 
                                                        1,375 
                                                        99 
                                                 
                                                
                                                        Jan 2019 
                                                        627 
                                                        1,379 
                                                        99 
                                                 
                                                
                                                        Feb 2019 
                                                        629 
                                                        1,381 
                                                        99 
                                                 
                                                
                                                        Mar 2019 
                                                        631 
                                                        1,384 
                                                        99 
                                                 
                                                
                                                        Apr 2019 
                                                        634 
                                                        1,389 
                                                        99 
                                                 
                                                
                                                        May 2019 
                                                        638 
                                                        1,393 
                                                        99 
                                                 
                                                
                                                        Jun 2019 
                                                        645 
                                                        1,398 
                                                        100 
                                                 
                                                
                                                        Jul 2019 
                                                        645 
                                                        1,400 
                                                        100 
                                                 
                                                
                                                        Aug 2019 
                                                        646 
                                                        1,405 
                                                        100 
                                                 
                                                
                                                        Sep 2019 
                                                        648 
                                                        1,409 
                                                        100 
                                                 
                                                
                                                        Oct 2019 
                                                        655 
                                                        1,414 
                                                        101 
                                                 
                                                
                                                        Nov 2019 
                                                        666 
                                                        1,418 
                                                        101 
                                                 
                                                
                                                        Dec 2019 
                                                        674 
                                                        1,422 
                                                        101 
                                                 
                                                
                                                        Jan 2020 
                                                        699 
                                                        1,429 
                                                        104 
                                                 
                                                
                                                        Feb 2020 
                                                        706 
                                                        1,433 
                                                        104 
                                                 
                                                
                                                        Mar 2020 
                                                        713 
                                                        1,437 
                                                        104 
                                                 
                                                
                                                        Apr 2020 
                                                        719 
                                                        1,443 
                                                        106 
                                                 
                                                
                                                        May 2020 
                                                        725 
                                                        1,446 
                                                        107 
                                                 
                                                
                                                        Jun 2020 
                                                        736 
                                                        1,452 
                                                        108 
                                                 
                                                
                                                        Jul 2020 
                                                        753 
                                                        1,470 
                                                        113 
                                                 
                                                
                                                        Aug 2020 
                                                        757 
                                                        1,482 
                                                        117 
                                                 
                                                
                                                        Sep 2020 
                                                        767 
                                                        1,489 
                                                        118 
                                                 
                                                
                                                        Oct 2020 
                                                        774 
                                                        1,496 
                                                        119 
                                                 
                                                
                                                        Nov 2020 
                                                        778 
                                                        1,504 
                                                        120 
                                                 
                                                
                                                        Dec 2020 
                                                        791 
                                                        1,507 
                                                        121 
                                                 
                                                
                                                        Jan 2021 
                                                        807 
                                                        1,511 
                                                        122 
                                                 
                                                
                                                        Feb 2021 
                                                        814 
                                                        1,512 
                                                        123 
                                                 
                                                
                                                        Mar 2021 
                                                        818 
                                                        1,516 
                                                        124 
                                                 
                                                
                                                        Apr 2021 
                                                        822 
                                                        1,519 
                                                        124 
                                                 
                                                
                                                        May 2021 
                                                        826 
                                                        1,523 
                                                        124 
                                                 
                                                
                                                        Jun 2021 
                                                        830 
                                                        1,525 
                                                        125 
                                                 
                                                
                                                        Jul 2021 
                                                        831 
                                                        1,531 
                                                        125 
                                                 
                                                
                                                        Aug 2021 
                                                        834 
                                                        1,538 
                                                        125 
                                                 
                                                
                                                        Sep 2021 
                                                        845 
                                                        1,544 
                                                        125 
                                                 
                                                
                                                        Oct 2021 
                                                        848 
                                                        1,570 
                                                        125 
                                                 
                                                
                                                        Nov 2021 
                                                        855 
                                                        1,593 
                                                        125 
                                                 
                                                
                                                        Dec 2021 
                                                        862 
                                                        1,597 
                                                        125 
                                                 
                                                
                                                        Jan 2022 
                                                        873 
                                                        1,600 
                                                        125 
                                                 
                                                
                                                        Feb 2022 
                                                        876 
                                                        1,604 
                                                        126 
                                                 
                                                
                                                        Mar 2022 
                                                        883 
                                                        1,610 
                                                        126 
                                                 
                                                
                                                        Apr 2022 
                                                        885 
                                                        1,612 
                                                        126 
                                                 
                                                
                                                        May 2022 
                                                        887 
                                                        1,613 
                                                        127 
                                                 
                                                
                                                        Jun 2022 
                                                        893 
                                                        1,616 
                                                        128 
                                                 
                                                
                                                        Jul 2022 
                                                        894 
                                                        1,619 
                                                        128 
                                                 
                                                
                                                        Aug 2022 
                                                        899 
                                                        1,620 
                                                        128 
                                                 
                                                
                                                        Sep 2022 
                                                        902 
                                                        1,621 
                                                        129 
                                                 
                                                
                                                        Oct 2022 
                                                        908 
                                                        1,624 
                                                        130 
                                                 
                                                
                                                        Nov 2022 
                                                        928 
                                                        1,625 
                                                        130 
                                                 
                                                
                                                        Dec 2022 
                                                        934 
                                                        1,630 
                                                        131 
                                                 
                                                
                                                        Jan 2023 
                                                        938 
                                                        1,637 
                                                        131 
                                                 
                                                
                                                        Feb 2023 
                                                        949 
                                                        1,641 
                                                        132 
                                                 
                                                
                                                        Mar 2023 
                                                        962 
                                                        1,642 
                                                        132 
                                                 
                                                
                                                        Apr 2023 
                                                        964 
                                                        1,644 
                                                        132 
                                                 
                                                
                                                        May 2023 
                                                        973 
                                                        1,649 
                                                        133 
                                                 
                                                
                                                        Jun 2023 
                                                        978 
                                                        1,658 
                                                        134 
                                                 
                                                
                                                        Jul 2023 
                                                        984 
                                                        1,660 
                                                        134 
                                                 
                                                
                                                        Aug 2023 
                                                        992 
                                                        1,663 
                                                        136 
                                                 
                                                
                                                        Sep 2023 
                                                        998 
                                                        1,668 
                                                        136 
                                                 
                                                
                                                        Oct 2023 
                                                        1,005 
                                                        1,677 
                                                        137 
                                                 
                                                
                                                        Nov 2023 
                                                        1,009 
                                                        1,678 
                                                        137 
                                                 
                                                
                                                        Dec 2023 
                                                        1,018 
                                                        1,680 
                                                        138 
                                                 
                                                
                                                        Jan 2024 
                                                        1,027 
                                                        1,684 
                                                        138 
                                                 
                                                
                                                        Feb 2024 
                                                        1,031 
                                                        1,689 
                                                        138 
                                                 
                                                
                                                        Mar 2024 
                                                        1,038 
                                                        1,697 
                                                        140 
                                                 
                                                
                                                        Apr 2024 
                                                        1,049 
                                                        1,702 
                                                        141 
                                                 
                                                
                                                        May 2024 
                                                        1,068 
                                                        1,717 
                                                        149 
                                                 
                                                
                                                        Jun 2024 
                                                        1,085 
                                                        1,719 
                                                        151 
                                                 
                                                
                                                        Jul 2024 
                                                        1,104 
                                                        1,722 
                                                        154 
                                                 
                                                
                                                        Aug 2024 
                                                        1,141 
                                                        1,728 
                                                        157 
                                                 
                                                
                                                        Sep 2024 
                                                        1,149 
                                                        1,731 
                                                        157 
                                                 
                                                
                                                        Oct 2024 
                                                        1,160 
                                                        1,733 
                                                        157 
                                                 
                                                
                                                        Nov 2024 
                                                        1,166 
                                                        1,734 
                                                        157 
                                                 
                                                
                                                        Dec 2024 
                                                        1,174 
                                                        1,738 
                                                        157 
                                                 
                                                
                                                        Jan 2025 
                                                        1,183 
                                                        1,743 
                                                        157 
                                                 
                                                
                                                        Feb 2025 
                                                        1,201 
                                                        1,749 
                                                        162 
                                                 
                                                
                                                        Mar 2025 
                                                        1,214 
                                                        1,756 
                                                        163 
                                                 
                                                
                                                        Apr 2025 
                                                        1,228 
                                                        1,760 
                                                        163 
                                                 
                                                
                                                        May 2025 
                                                        1,240 
                                                        1,762 
                                                        163 
                                                 
                                                
                                                        Jun 2025 
                                                        1,268 
                                                        1,769 
                                                        163 
                                                 
                                                
                                                        Jul 2025 
                                                        1,287 
                                                        1,788 
                                                        164 
                                                 
                                                
                                                        Aug 2025 
                                                        1,309 
                                                        1,798 
                                                        167 
                                                 
                                                
                                                        Sep 2025 
                                                        1,356 
                                                        1,805 
                                                        168 
                                                 
                                                
                                                        Oct 2025 
                                                        1,385 
                                                        1,823 
                                                        173 
                                                 
                                                
                                                        Nov 2025 
                                                        1,389 
                                                        1,823 
                                                        173 
                                                 
                                             
                                        
                                     
                                 
                             
                     
                    
                    
                        
                            Total article views: 861  (including HTML, PDF, and XML)
                        
                            
                                
                                
                                    HTML 
                                    PDF 
                                    XML 
                                    Total 
                                    BibTeX 
                                    EndNote 
                        
                                 
                                
                                    273 
                                    502 
                                    86 
                                    861 
                                    21 
                                    3 
                        
                                 
                                 
                            
                            
                                HTML: 273 
                                PDF: 502 
                                XML: 86 
                                Total: 861 
                                BibTeX: 21 
                                EndNote: 3 
                             
                            Views and downloads   (calculated since 01 Feb 2013, article published on 21 Sep 2012)
                        
                        
                            
                                
                                    
                                        
                                            
                                            
                                                Month 
                                                HTML 
                                                PDF 
                                                XML 
                                                Total 
                                             
                                             
                                            
                                                
                                                        Feb 2013 
                                                        13 
                                                        16 
                                                        3 
                                                        32 
                                                 
                                                
                                                        Mar 2013 
                                                        3 
                                                        9 
                                                        4 
                                                        16 
                                                 
                                                
                                                        Apr 2013 
                                                        2 
                                                        11 
                                                        2 
                                                        15 
                                                 
                                                
                                                        May 2013 
                                                        6 
                                                        7 
                                                        1 
                                                        14 
                                                 
                                                
                                                        Jun 2013 
                                                        3 
                                                        18 
                                                        2 
                                                        23 
                                                 
                                                
                                                        Jul 2013 
                                                        1 
                                                        8 
                                                        2 
                                                        11 
                                                 
                                                
                                                        Aug 2013 
                                                        4 
                                                        6 
                                                        1 
                                                        11 
                                                 
                                                
                                                        Sep 2013 
                                                        1 
                                                        9 
                                                        1 
                                                        11 
                                                 
                                                
                                                        Oct 2013 
                                                        2 
                                                        7 
                                                        1 
                                                        10 
                                                 
                                                
                                                        Nov 2013 
                                                        1 
                                                        10 
                                                        3 
                                                        14 
                                                 
                                                
                                                        Dec 2013 
                                                        7 
                                                        10 
                                                        1 
                                                        18 
                                                 
                                                
                                                        Jan 2014 
                                                        1 
                                                        8 
                                                        3 
                                                        12 
                                                 
                                                
                                                        Feb 2014 
                                                        7 
                                                        10 
                                                        5 
                                                        22 
                                                 
                                                
                                                        Mar 2014 
                                                        10 
                                                        6 
                                                        4 
                                                        20 
                                                 
                                                
                                                        Apr 2014 
                                                        6 
                                                        12 
                                                        3 
                                                        21 
                                                 
                                                
                                                        May 2014 
                                                        1 
                                                        10 
                                                        1 
                                                        12 
                                                 
                                                
                                                        Jun 2014 
                                                        10 
                                                        3 
                                                        13 
                                                 
                                                
                                                        Jul 2014 
                                                        2 
                                                        9 
                                                        2 
                                                        13 
                                                 
                                                
                                                        Aug 2014 
                                                        1 
                                                        7 
                                                        1 
                                                        9 
                                                 
                                                
                                                        Sep 2014 
                                                        8 
                                                        3 
                                                        11 
                                                 
                                                
                                                        Oct 2014 
                                                        5 
                                                        2 
                                                        7 
                                                 
                                                
                                                        Nov 2014 
                                                        2 
                                                        6 
                                                        2 
                                                        10 
                                                 
                                                
                                                        Dec 2014 
                                                        8 
                                                        1 
                                                        9 
                                                 
                                                
                                                        Jan 2015 
                                                        2 
                                                        1 
                                                        3 
                                                 
                                                
                                                        Feb 2015 
                                                        1 
                                                        6 
                                                        1 
                                                        8 
                                                 
                                                
                                                        Mar 2015 
                                                        8 
                                                        3 
                                                        11 
                                                 
                                                
                                                        Apr 2015 
                                                        3 
                                                        9 
                                                        1 
                                                        13 
                                                 
                                                
                                                        May 2015 
                                                        2 
                                                        7 
                                                        0 
                                                        9 
                                                 
                                                
                                                        Jun 2015 
                                                        4 
                                                        3 
                                                        3 
                                                        10 
                                                 
                                                
                                                        Jul 2015 
                                                        7 
                                                        0 
                                                        7 
                                                 
                                                
                                                        Aug 2015 
                                                        2 
                                                        13 
                                                        1 
                                                        16 
                                                 
                                                
                                                        Sep 2015 
                                                        9 
                                                        1 
                                                        10 
                                                 
                                                
                                                        Oct 2015 
                                                        4 
                                                        8 
                                                        1 
                                                        13 
                                                 
                                                
                                                        Nov 2015 
                                                        8 
                                                        5 
                                                        1 
                                                        14 
                                                 
                                                
                                                        Dec 2015 
                                                        3 
                                                        3 
                                                 
                                                
                                                        Jan 2016 
                                                        10 
                                                        4 
                                                        2 
                                                        16 
                                                 
                                                
                                                        Feb 2016 
                                                        8 
                                                        3 
                                                        0 
                                                        11 
                                                 
                                                
                                                        Mar 2016 
                                                        6 
                                                        2 
                                                        0 
                                                        8 
                                                 
                                                
                                                        Apr 2016 
                                                        4 
                                                        0 
                                                        4 
                                                 
                                                
                                                        May 2016 
                                                        3 
                                                        3 
                                                        0 
                                                        6 
                                                 
                                                
                                                        Jun 2016 
                                                        3 
                                                        2 
                                                        0 
                                                        5 
                                                 
                                                
                                                        Jul 2016 
                                                        3 
                                                        3 
                                                        6 
                                                 
                                                
                                                        Aug 2016 
                                                        2 
                                                        2 
                                                        0 
                                                        4 
                                                 
                                                
                                                        Sep 2016 
                                                        4 
                                                        0 
                                                        4 
                                                 
                                                
                                                        Oct 2016 
                                                        3 
                                                        1 
                                                        1 
                                                        5 
                                                 
                                                
                                                        Nov 2016 
                                                        4 
                                                        0 
                                                        4 
                                                 
                                                
                                                        Dec 2016 
                                                        1 
                                                        1 
                                                        0 
                                                        2 
                                                 
                                                
                                                        Jan 2017 
                                                        5 
                                                        1 
                                                        0 
                                                        6 
                                                 
                                                
                                                        Feb 2017 
                                                        3 
                                                        0 
                                                        3 
                                                 
                                                
                                                        Mar 2017 
                                                        6 
                                                        3 
                                                        0 
                                                        9 
                                                 
                                                
                                                        Apr 2017 
                                                        10 
                                                        2 
                                                        1 
                                                        13 
                                                 
                                                
                                                        May 2017 
                                                        8 
                                                        0 
                                                        8 
                                                 
                                                
                                                        Jun 2017 
                                                        5 
                                                        0 
                                                        5 
                                                 
                                                
                                                        Jul 2017 
                                                        3 
                                                        1 
                                                        0 
                                                        4 
                                                 
                                                
                                                        Aug 2017 
                                                        1 
                                                        1 
                                                        0 
                                                        2 
                                                 
                                                
                                                        Sep 2017 
                                                        2 
                                                        1 
                                                        0 
                                                        3 
                                                 
                                                
                                                        Oct 2017 
                                                        2 
                                                        0 
                                                        2 
                                                 
                                                
                                                        Nov 2017 
                                                        2 
                                                        1 
                                                        0 
                                                        3 
                                                 
                                                
                                                        Dec 2017 
                                                        3 
                                                        2 
                                                        0 
                                                        5 
                                                 
                                                
                                                        Jan 2018 
                                                        1 
                                                        2 
                                                        0 
                                                        3 
                                                 
                                                
                                                        Feb 2018 
                                                        3 
                                                        0 
                                                        3 
                                                 
                                                
                                                        Mar 2018 
                                                        1 
                                                        1 
                                                        1 
                                                        3 
                                                 
                                                
                                                        Apr 2018 
                                                        1 
                                                        2 
                                                        0 
                                                        3 
                                                 
                                                
                                                        May 2018 
                                                        2 
                                                        3 
                                                        0 
                                                        5 
                                                 
                                                
                                                        Jun 2018 
                                                        1 
                                                        1 
                                                        0 
                                                        2 
                                                 
                                                
                                                        Jul 2018 
                                                        1 
                                                        1 
                                                        0 
                                                        2 
                                                 
                                                
                                                        Aug 2018 
                                                        5 
                                                        3 
                                                        0 
                                                        8 
                                                 
                                                
                                                        Sep 2018 
                                                        1 
                                                        2 
                                                        0 
                                                        3 
                                                 
                                                
                                                        Oct 2018 
                                                        4 
                                                        1 
                                                        0 
                                                        5 
                                                 
                                                
                                                        Nov 2018 
                                                        3 
                                                        2 
                                                        0 
                                                        5 
                                                 
                                                
                                                        Dec 2018 
                                                        2 
                                                        3 
                                                        0 
                                                        5 
                                                 
                                                
                                                        Jan 2019 
                                                        4 
                                                        1 
                                                        0 
                                                        5 
                                                 
                                                
                                                        Feb 2019 
                                                        2 
                                                        1 
                                                        0 
                                                        3 
                                                 
                                                
                                                        Mar 2019 
                                                        5 
                                                        3 
                                                        0 
                                                        8 
                                                 
                                                
                                                        Apr 2019 
                                                        3 
                                                        1 
                                                        1 
                                                        5 
                                                 
                                                
                                                        May 2019 
                                                        2 
                                                        0 
                                                        2 
                                                 
                                                
                                                        Jun 2019 
                                                        1 
                                                        2 
                                                        2 
                                                        5 
                                                 
                                                
                                                        Jul 2019 
                                                        0 
                                                 
                                                
                                                        Aug 2019 
                                                        1 
                                                        1 
                                                        0 
                                                        2 
                                                 
                                                
                                                        Sep 2019 
                                                        1 
                                                        0 
                                                        1 
                                                 
                                                
                                                        Oct 2019 
                                                        4 
                                                        3 
                                                        0 
                                                        7 
                                                 
                                                
                                                        Nov 2019 
                                                        1 
                                                        1 
                                                        0 
                                                        2 
                                                 
                                                
                                                        Dec 2019 
                                                        1 
                                                        0 
                                                        1 
                                                 
                                                
                                                        Jan 2020 
                                                        0 
                                                 
                                                
                                                        Feb 2020 
                                                        2 
                                                        0 
                                                        2 
                                                 
                                                
                                                        Mar 2020 
                                                        0 
                                                 
                                                
                                                        Apr 2020 
                                                        1 
                                                        0 
                                                        1 
                                                 
                                                
                                                        May 2020 
                                                        1 
                                                        2 
                                                        0 
                                                        3 
                                                 
                                                
                                                        Jun 2020 
                                                        6 
                                                        0 
                                                        6 
                                                 
                                                
                                                        Jul 2020 
                                                        8 
                                                        4 
                                                        5 
                                                        17 
                                                 
                                                
                                                        Aug 2020 
                                                        4 
                                                        3 
                                                        7 
                                                 
                                                
                                                        Sep 2020 
                                                        2 
                                                        0 
                                                        2 
                                                 
                                                
                                                        Oct 2020 
                                                        3 
                                                        0 
                                                        3 
                                                 
                                                
                                                        Nov 2020 
                                                        0 
                                                 
                                                
                                                        Dec 2020 
                                                        2 
                                                        0 
                                                        2 
                                                 
                                                
                                                        Jan 2021 
                                                        1 
                                                        3 
                                                        0 
                                                        4 
                                                 
                                                
                                                        Feb 2021 
                                                        1 
                                                        0 
                                                        1 
                                                 
                                                
                                                        Mar 2021 
                                                        1 
                                                        3 
                                                        0 
                                                        4 
                                                 
                                                
                                                        Apr 2021 
                                                        1 
                                                        3 
                                                        0 
                                                        4 
                                                 
                                                
                                                        May 2021 
                                                        1 
                                                        2 
                                                        0 
                                                        3 
                                                 
                                                
                                                        Jun 2021 
                                                        3 
                                                        0 
                                                        3 
                                                 
                                                
                                                        Jul 2021 
                                                        1 
                                                        0 
                                                        1 
                                                 
                                                
                                                        Aug 2021 
                                                        5 
                                                        0 
                                                        5 
                                                 
                                                
                                                        Sep 2021 
                                                        4 
                                                        0 
                                                        4 
                                                 
                                                
                                                        Oct 2021 
                                                        1 
                                                        0 
                                                        1 
                                                 
                                                
                                                        Nov 2021 
                                                        4 
                                                        0 
                                                        4 
                                                 
                                                
                                                        Dec 2021 
                                                        4 
                                                        0 
                                                        4 
                                                 
                                                
                                                        Jan 2022 
                                                        2 
                                                        0 
                                                        2 
                                                 
                                                
                                                        Feb 2022 
                                                        1 
                                                        0 
                                                        1 
                                                 
                                                
                                                        Mar 2022 
                                                        0 
                                                 
                                                
                                                        Apr 2022 
                                                        2 
                                                        0 
                                                        2 
                                                 
                                                
                                                        May 2022 
                                                        2 
                                                        0 
                                                        2 
                                                 
                                                
                                                        Jun 2022 
                                                        5 
                                                        0 
                                                        5 
                                                 
                                                
                                                        Jul 2022 
                                                        0 
                                                 
                                                
                                                        Aug 2022 
                                                        2 
                                                        0 
                                                        2 
                                                 
                                                
                                                        Sep 2022 
                                                        1 
                                                        0 
                                                        1 
                                                 
                                                
                                                        Oct 2022 
                                                        3 
                                                        0 
                                                        3 
                                                 
                                                
                                                        Nov 2022 
                                                        6 
                                                        0 
                                                        6 
                                                 
                                                
                                                        Dec 2022 
                                                        5 
                                                        0 
                                                        5 
                                                 
                                                
                                                        Jan 2023 
                                                        3 
                                                        0 
                                                        3 
                                                 
                                                
                                                        Feb 2023 
                                                        1 
                                                        0 
                                                        1 
                                                 
                                                
                                                        Mar 2023 
                                                        4 
                                                        0 
                                                        4 
                                                 
                                                
                                                        Apr 2023 
                                                        0 
                                                 
                                                
                                                        May 2023 
                                                        2 
                                                        0 
                                                        2 
                                                 
                                                
                                                        Jun 2023 
                                                        1 
                                                        0 
                                                        1 
                                                 
                                                
                                                        Jul 2023 
                                                        3 
                                                        0 
                                                        3 
                                                 
                                                
                                                        Aug 2023 
                                                        1 
                                                        0 
                                                        1 
                                                 
                                                
                                                        Sep 2023 
                                                        5 
                                                        0 
                                                        5 
                                                 
                                                
                                                        Oct 2023 
                                                        5 
                                                        0 
                                                        5 
                                                 
                                                
                                                        Nov 2023 
                                                        0 
                                                 
                                                
                                                        Dec 2023 
                                                        1 
                                                        0 
                                                        1 
                                                 
                                                
                                                        Jan 2024 
                                                        0 
                                                 
                                                
                                                        Feb 2024 
                                                        0 
                                                 
                                                
                                                        Mar 2024 
                                                        2 
                                                        0 
                                                        2 
                                                 
                                                
                                                        Apr 2024 
                                                        2 
                                                        0 
                                                        2 
                                                 
                                                
                                                        May 2024 
                                                        2 
                                                        0 
                                                        2 
                                                 
                                                
                                                        Jun 2024 
                                                        4 
                                                        0 
                                                        4 
                                                 
                                                
                                                        Jul 2024 
                                                        2 
                                                        0 
                                                        2 
                                                 
                                                
                                                        Aug 2024 
                                                        1 
                                                        2 
                                                        0 
                                                        3 
                                                 
                                                
                                                        Sep 2024 
                                                        3 
                                                        0 
                                                        3 
                                                 
                                                
                                                        Oct 2024 
                                                        1 
                                                        0 
                                                        1 
                                                 
                                                
                                                        Nov 2024 
                                                        1 
                                                        1 
                                                        0 
                                                        2 
                                                 
                                                
                                                        Dec 2024 
                                                        4 
                                                        0 
                                                        4 
                                                 
                                                
                                                        Jan 2025 
                                                        6 
                                                        0 
                                                        6 
                                                 
                                                
                                                        Feb 2025 
                                                        3 
                                                        0 
                                                        3 
                                                 
                                                
                                                        Mar 2025 
                                                        1 
                                                        0 
                                                        1 
                                                 
                                                
                                                        Apr 2025 
                                                        2 
                                                        0 
                                                        2 
                                                 
                                                
                                                        May 2025 
                                                        1 
                                                        0 
                                                        1 
                                                 
                                                
                                                        Jun 2025 
                                                        1 
                                                        0 
                                                        1 
                                                 
                                                
                                                        Jul 2025 
                                                        2 
                                                        0 
                                                        2 
                                                 
                                                
                                                        Aug 2025 
                                                        1 
                                                        0 
                                                        1 
                                                 
                                                
                                                        Sep 2025 
                                                        3 
                                                        0 
                                                        3 
                                                 
                                                
                                                        Oct 2025 
                                                        3 
                                                        0 
                                                        3 
                                                 
                                                
                                                        Nov 2025 
                                                        0 
                                                 
                        
                                             
                                        
                                     
                                 
                                
                             
                        
                        
                            Cumulative views and downloads  
                                         (calculated since 01 Feb 2013, article published on 21 Sep 2012)
                        
                        
                            
                                
                                    
                                        
                                            
                                            
                                                Month 
                                                HTML views 
                                                PDF downloads 
                                                XML downloads 
                                             
                                             
                                            
                                                
                                                        Feb 2013 
                                                        13 
                                                        16 
                                                        3 
                                                 
                                                
                                                        Mar 2013 
                                                        16 
                                                        25 
                                                        7 
                                                 
                                                
                                                        Apr 2013 
                                                        18 
                                                        36 
                                                        9 
                                                 
                                                
                                                        May 2013 
                                                        24 
                                                        43 
                                                        10 
                                                 
                                                
                                                        Jun 2013 
                                                        27 
                                                        61 
                                                        12 
                                                 
                                                
                                                        Jul 2013 
                                                        28 
                                                        69 
                                                        14 
                                                 
                                                
                                                        Aug 2013 
                                                        32 
                                                        75 
                                                        15 
                                                 
                                                
                                                        Sep 2013 
                                                        33 
                                                        84 
                                                        16 
                                                 
                                                
                                                        Oct 2013 
                                                        35 
                                                        91 
                                                        17 
                                                 
                                                
                                                        Nov 2013 
                                                        36 
                                                        101 
                                                        20 
                                                 
                                                
                                                        Dec 2013 
                                                        43 
                                                        111 
                                                        21 
                                                 
                                                
                                                        Jan 2014 
                                                        44 
                                                        119 
                                                        24 
                                                 
                                                
                                                        Feb 2014 
                                                        51 
                                                        129 
                                                        29 
                                                 
                                                
                                                        Mar 2014 
                                                        61 
                                                        135 
                                                        33 
                                                 
                                                
                                                        Apr 2014 
                                                        67 
                                                        147 
                                                        36 
                                                 
                                                
                                                        May 2014 
                                                        68 
                                                        157 
                                                        37 
                                                 
                                                
                                                        Jun 2014 
                                                        68 
                                                        167 
                                                        40 
                                                 
                                                
                                                        Jul 2014 
                                                        70 
                                                        176 
                                                        42 
                                                 
                                                
                                                        Aug 2014 
                                                        71 
                                                        183 
                                                        43 
                                                 
                                                
                                                        Sep 2014 
                                                        71 
                                                        191 
                                                        46 
                                                 
                                                
                                                        Oct 2014 
                                                        71 
                                                        196 
                                                        48 
                                                 
                                                
                                                        Nov 2014 
                                                        73 
                                                        202 
                                                        50 
                                                 
                                                
                                                        Dec 2014 
                                                        73 
                                                        210 
                                                        51 
                                                 
                                                
                                                        Jan 2015 
                                                        73 
                                                        212 
                                                        52 
                                                 
                                                
                                                        Feb 2015 
                                                        74 
                                                        218 
                                                        53 
                                                 
                                                
                                                        Mar 2015 
                                                        74 
                                                        226 
                                                        56 
                                                 
                                                
                                                        Apr 2015 
                                                        77 
                                                        235 
                                                        57 
                                                 
                                                
                                                        May 2015 
                                                        79 
                                                        242 
                                                        57 
                                                 
                                                
                                                        Jun 2015 
                                                        83 
                                                        245 
                                                        60 
                                                 
                                                
                                                        Jul 2015 
                                                        90 
                                                        245 
                                                        60 
                                                 
                                                
                                                        Aug 2015 
                                                        92 
                                                        258 
                                                        61 
                                                 
                                                
                                                        Sep 2015 
                                                        92 
                                                        267 
                                                        62 
                                                 
                                                
                                                        Oct 2015 
                                                        96 
                                                        275 
                                                        63 
                                                 
                                                
                                                        Nov 2015 
                                                        104 
                                                        280 
                                                        64 
                                                 
                                                
                                                        Dec 2015 
                                                        104 
                                                        280 
                                                        67 
                                                 
                                                
                                                        Jan 2016 
                                                        114 
                                                        284 
                                                        69 
                                                 
                                                
                                                        Feb 2016 
                                                        122 
                                                        287 
                                                        69 
                                                 
                                                
                                                        Mar 2016 
                                                        128 
                                                        289 
                                                        69 
                                                 
                                                
                                                        Apr 2016 
                                                        132 
                                                        289 
                                                        69 
                                                 
                                                
                                                        May 2016 
                                                        135 
                                                        292 
                                                        69 
                                                 
                                                
                                                        Jun 2016 
                                                        138 
                                                        294 
                                                        69 
                                                 
                                                
                                                        Jul 2016 
                                                        141 
                                                        294 
                                                        72 
                                                 
                                                
                                                        Aug 2016 
                                                        143 
                                                        296 
                                                        72 
                                                 
                                                
                                                        Sep 2016 
                                                        147 
                                                        296 
                                                        72 
                                                 
                                                
                                                        Oct 2016 
                                                        150 
                                                        297 
                                                        73 
                                                 
                                                
                                                        Nov 2016 
                                                        154 
                                                        297 
                                                        73 
                                                 
                                                
                                                        Dec 2016 
                                                        155 
                                                        298 
                                                        73 
                                                 
                                                
                                                        Jan 2017 
                                                        160 
                                                        299 
                                                        73 
                                                 
                                                
                                                        Feb 2017 
                                                        163 
                                                        299 
                                                        73 
                                                 
                                                
                                                        Mar 2017 
                                                        169 
                                                        302 
                                                        73 
                                                 
                                                
                                                        Apr 2017 
                                                        179 
                                                        304 
                                                        74 
                                                 
                                                
                                                        May 2017 
                                                        187 
                                                        304 
                                                        74 
                                                 
                                                
                                                        Jun 2017 
                                                        192 
                                                        304 
                                                        74 
                                                 
                                                
                                                        Jul 2017 
                                                        195 
                                                        305 
                                                        74 
                                                 
                                                
                                                        Aug 2017 
                                                        196 
                                                        306 
                                                        74 
                                                 
                                                
                                                        Sep 2017 
                                                        198 
                                                        307 
                                                        74 
                                                 
                                                
                                                        Oct 2017 
                                                        198 
                                                        309 
                                                        74 
                                                 
                                                
                                                        Nov 2017 
                                                        200 
                                                        310 
                                                        74 
                                                 
                                                
                                                        Dec 2017 
                                                        203 
                                                        312 
                                                        74 
                                                 
                                                
                                                        Jan 2018 
                                                        204 
                                                        314 
                                                        74 
                                                 
                                                
                                                        Feb 2018 
                                                        207 
                                                        314 
                                                        74 
                                                 
                                                
                                                        Mar 2018 
                                                        208 
                                                        315 
                                                        75 
                                                 
                                                
                                                        Apr 2018 
                                                        209 
                                                        317 
                                                        75 
                                                 
                                                
                                                        May 2018 
                                                        211 
                                                        320 
                                                        75 
                                                 
                                                
                                                        Jun 2018 
                                                        212 
                                                        321 
                                                        75 
                                                 
                                                
                                                        Jul 2018 
                                                        213 
                                                        322 
                                                        75 
                                                 
                                                
                                                        Aug 2018 
                                                        218 
                                                        325 
                                                        75 
                                                 
                                                
                                                        Sep 2018 
                                                        219 
                                                        327 
                                                        75 
                                                 
                                                
                                                        Oct 2018 
                                                        223 
                                                        328 
                                                        75 
                                                 
                                                
                                                        Nov 2018 
                                                        226 
                                                        330 
                                                        75 
                                                 
                                                
                                                        Dec 2018 
                                                        228 
                                                        333 
                                                        75 
                                                 
                                                
                                                        Jan 2019 
                                                        232 
                                                        334 
                                                        75 
                                                 
                                                
                                                        Feb 2019 
                                                        234 
                                                        335 
                                                        75 
                                                 
                                                
                                                        Mar 2019 
                                                        239 
                                                        338 
                                                        75 
                                                 
                                                
                                                        Apr 2019 
                                                        242 
                                                        339 
                                                        76 
                                                 
                                                
                                                        May 2019 
                                                        244 
                                                        339 
                                                        76 
                                                 
                                                
                                                        Jun 2019 
                                                        245 
                                                        341 
                                                        78 
                                                 
                                                
                                                        Jul 2019 
                                                        245 
                                                        341 
                                                        78 
                                                 
                                                
                                                        Aug 2019 
                                                        246 
                                                        342 
                                                        78 
                                                 
                                                
                                                        Sep 2019 
                                                        246 
                                                        343 
                                                        78 
                                                 
                                                
                                                        Oct 2019 
                                                        250 
                                                        346 
                                                        78 
                                                 
                                                
                                                        Nov 2019 
                                                        251 
                                                        347 
                                                        78 
                                                 
                                                
                                                        Dec 2019 
                                                        251 
                                                        348 
                                                        78 
                                                 
                                                
                                                        Jan 2020 
                                                        251 
                                                        348 
                                                        78 
                                                 
                                                
                                                        Feb 2020 
                                                        251 
                                                        350 
                                                        78 
                                                 
                                                
                                                        Mar 2020 
                                                        251 
                                                        350 
                                                        78 
                                                 
                                                
                                                        Apr 2020 
                                                        252 
                                                        350 
                                                        78 
                                                 
                                                
                                                        May 2020 
                                                        253 
                                                        352 
                                                        78 
                                                 
                                                
                                                        Jun 2020 
                                                        259 
                                                        352 
                                                        78 
                                                 
                                                
                                                        Jul 2020 
                                                        267 
                                                        356 
                                                        83 
                                                 
                                                
                                                        Aug 2020 
                                                        267 
                                                        360 
                                                        86 
                                                 
                                                
                                                        Sep 2020 
                                                        267 
                                                        362 
                                                        86 
                                                 
                                                
                                                        Oct 2020 
                                                        267 
                                                        365 
                                                        86 
                                                 
                                                
                                                        Nov 2020 
                                                        267 
                                                        365 
                                                        86 
                                                 
                                                
                                                        Dec 2020 
                                                        267 
                                                        367 
                                                        86 
                                                 
                                                
                                                        Jan 2021 
                                                        268 
                                                        370 
                                                        86 
                                                 
                                                
                                                        Feb 2021 
                                                        268 
                                                        371 
                                                        86 
                                                 
                                                
                                                        Mar 2021 
                                                        269 
                                                        374 
                                                        86 
                                                 
                                                
                                                        Apr 2021 
                                                        270 
                                                        377 
                                                        86 
                                                 
                                                
                                                        May 2021 
                                                        271 
                                                        379 
                                                        86 
                                                 
                                                
                                                        Jun 2021 
                                                        271 
                                                        382 
                                                        86 
                                                 
                                                
                                                        Jul 2021 
                                                        271 
                                                        383 
                                                        86 
                                                 
                                                
                                                        Aug 2021 
                                                        271 
                                                        388 
                                                        86 
                                                 
                                                
                                                        Sep 2021 
                                                        271 
                                                        392 
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Cited 
        
            
        
        
                
Saved (final revised paper) 
                
                
Saved (preprint) 
                
                
Discussed (final revised paper) 
                    
    
    Latest update: 04 Nov 2025