@Article{acp-11-5207-2011,
AUTHOR = {Yang, F. and Tan, J. and Zhao, Q. and Du, Z. and He, K. and Ma, Y. and Duan, F. and Chen, G. and Zhao, Q.},
TITLE = {Characteristics of PM$_{2.5}$ speciation in representative megacities and across China},
JOURNAL = {Atmospheric Chemistry and Physics},
VOLUME = {11},
YEAR = {2011},
NUMBER = {11},
PAGES = {5207--5219},
URL = {http://www.atmos-chem-phys.net/11/5207/2011/},
DOI = {10.5194/acp-11-5207-2011}
}