@article {629727, title = {Tracking a Severe Pollution Event in Beijing in December 2016 with the GRAPES{\textendash}CUACE Adjoint Model}, journal = {Journal of Meteorological Research}, volume = {31}, number = {1}, year = {2018}, pages = {49-59}, url = {http://html.rhhz.net/qxxb_en/html/20180105.htm}, author = {Wang Chao and Xingqin An and Shixian Zhai and Zhaobin Sun} }