@Article{acp-12-7543-2012,
AUTHOR = {Zeng, G. and Wood, S. W. and Morgenstern, O. and Jones, N. B. and Robinson, J. and Smale, D.},
TITLE = {Trends and variations in CO, C$_{2}$H$_{6}$, and HCN in the Southern Hemisphere point to the declining anthropogenic emissions of CO and C$_{2}$H$_{6}$},
JOURNAL = {Atmospheric Chemistry and Physics},
VOLUME = {12},
YEAR = {2012},
NUMBER = {16},
PAGES = {7543--7555},
URL = {http://www.atmos-chem-phys.net/12/7543/2012/},
DOI = {10.5194/acp-12-7543-2012}
}