@Article{acp-12-8865-2012,
AUTHOR = {Haszpra, L. and Ramonet, M. and Schmidt, M. and Barcza, Z. and P\'atkai, Zs. and Tarczay, K. and Yver, C. and Tarniewicz, J. and Ciais, P.},
TITLE = {Variation of CO$_{2}$ mole fraction in the lower free troposphere, in the boundary layer and at the surface},
JOURNAL = {Atmospheric Chemistry and Physics},
VOLUME = {12},
YEAR = {2012},
NUMBER = {18},
PAGES = {8865--8875},
URL = {http://www.atmos-chem-phys.net/12/8865/2012/},
DOI = {10.5194/acp-12-8865-2012}
}