@Article{acp-19-14741-2019,
AUTHOR = {Francey, R. J. and Frederiksen, J. S. and Steele, L. P. and Langenfelds, R. L.},
TITLE = {Variability in a four-network composite of atmospheric \chem{CO_{2}} differences
between three primary baseline sites},
JOURNAL = {Atmospheric Chemistry and Physics},
VOLUME = {19},
YEAR = {2019},
NUMBER = {23},
PAGES = {14741--14754},
URL = {https://acp.copernicus.org/articles/19/14741/2019/},
DOI = {10.5194/acp-19-14741-2019}
}