@Article{acp-9-8813-2009,
AUTHOR = {Tang, G. and Li, X. and Wang, Y. and Xin, J. and Ren, X.},
TITLE = {Surface ozone trend details and interpretations in Beijing, 2001–2006},
JOURNAL = {Atmospheric Chemistry and Physics},
VOLUME = {9},
YEAR = {2009},
NUMBER = {22},
PAGES = {8813--8823},
URL = {http://www.atmos-chem-phys.net/9/8813/2009/},
DOI = {10.5194/acp-9-8813-2009}
}