Long-term Mean Footprint and Its Relationship to Heavy Air Pollution Episodes in Beijing
ZOU Qingqing, CAI Xuhui, GUO Mengting, SONG Yu, ZHANG Xiaoling
Acta Scientiarum Naturalium Universitatis Pekinensis . 2018, (2): 341 -349 .  DOI: 10.13209/j.0479-8023.2017.134