@Article{bg-2019-66,
AUTHOR = {Cao, M. and Jiang, Y. and Lei, J. and He, Q. and Fan, J. and Zeng, Z.},
TITLE = {Constraining the soil carbon source to cave-air CO$_\mathbf{2}$: evidence from the high-time resolution monitoring soil CO$_\mathbf{2}$, cave-air CO$_\mathbf{2}$ and its $\boldsymbol{\delta}^\mathbf{13}$C in Xueyudong, Southwest China},
JOURNAL = {Biogeosciences Discussions},
VOLUME = {2019},
YEAR = {2019},
PAGES = {1--23},
URL = {https://bg.copernicus.org/preprints/bg-2019-66/},
DOI = {10.5194/bg-2019-66}
}