@article {40890,
	title = {Evaluation of gap-filling approaches in satellite-based daily PM2. 5 prediction models},
	journal = {Atmospheric Environment},
	volume = {244},
	year = {2021},
	pages = {117921},
	isbn = {1352-2310},
	author = {Xiao, Qingyang and Geng, Guannan and Jing Cheng and Liang, Fengchao and Li, Rui and Meng, Xia and Tao Xue and Huang, Xiaomeng and Kan, Haidong and Qiang Zhang}
}
