@article {chen2014spatiotemporal,
	title = {Spatiotemporal pattern and regional characteristics of visibility in China during 1976{\textendash}2010},
	journal = {Chinese science bulletin},
	volume = {59},
	number = {24},
	year = {2014},
	pages = {3054{\textendash}3065},
	publisher = {Springer},
	author = {Yuan Chen and Shaodong Xie}
}
