@article {601211,
	title = {Increase of ambient formaldehyde in Beijing and its implication for VOC reactivity},
	journal = {Chinese Chemical Letters},
	volume = {23},
	number = {9},
	year = {2012},
	pages = {1059-1062},
	author = {Q. Zhang and M. Shao and Li, Y. and S. Lu and B. Yuan and Chen, W.}
}
