@Article{acp-11-1913-2011,
AUTHOR = {Helfter, C. and Famulari, D. and Phillips, G. J. and Barlow, J. F. and Wood, C. R. and Grimmond, C. S. B. and Nemitz, E.},
TITLE = {Controls of carbon dioxide concentrations and fluxes above  central London},
JOURNAL = {Atmospheric Chemistry and Physics},
VOLUME = {11},
YEAR = {2011},
NUMBER = {5},
PAGES = {1913--1928},
URL = {http://www.atmos-chem-phys.net/11/1913/2011/},
DOI = {10.5194/acp-11-1913-2011}
}