@Article{acp-13-599-2013,
AUTHOR = {Zuiderweg, A. and Holzinger, R. and Martinerie, P. and Schneider, R. and Kaiser, J. and Witrant, E. and Etheridge, D. and Petrenko, V. and Blunier, T. and R\"ockmann, T.},
TITLE = {Extreme $^{13}$C depletion of CCl$_{2}$F$_{2}$ in firn air samples from NEEM, Greenland},
JOURNAL = {Atmospheric Chemistry and Physics},
VOLUME = {13},
YEAR = {2013},
NUMBER = {2},
PAGES = {599--609},
URL = {http://www.atmos-chem-phys.net/13/599/2013/},
DOI = {10.5194/acp-13-599-2013}
}