Modelling the dynamic chemical interactions of atmospheric ammonia with leaf surface wetness in a managed grassland canopy - Burkhardt, J.; Flechard, C. R.; Gresens, F.; Mattsson, M.; Jongejan, P. A. C.; Erisman, J. W.; Weidinger, T.; Meszaros, R.; Nemitz, E.; Sutton, M. A. (Biogeosciences, 2009)