@Article{acp-21-11741-2021,
AUTHOR = {Yang, Y. and Zhou, M. and Wang, T. and Yao, B. and Han, P. and Ji, D. and Zhou, W. and Sun, Y. and Wang, G. and Wang, P.},
TITLE = {Spatial and temporal variations of \chem{CO_2} mole fractions observed at Beijing, Xianghe, and Xinglong in North China},
JOURNAL = {Atmospheric Chemistry and Physics},
VOLUME = {21},
YEAR = {2021},
NUMBER = {15},
PAGES = {11741--11757},
URL = {https://acp.copernicus.org/articles/21/11741/2021/},
DOI = {10.5194/acp-21-11741-2021}
}