@article {206,
	title = {A survey of Chinese Amphibia},
	journal = {Peking Society of Natural History Bulletin},
	volume = {15},
	year = {1940},
	pages = {13-86},
	author = {Pope, C.H. and Boring, A.M.}
}
@article {199,
	title = {Studies in variation among the Chinese Amphibia I. Salamandridae},
	journal = {Peking Society of Natural History Bulletin},
	volume = {9},
	year = {1935},
	pages = {327-361},
	author = {Chang, T.K. and Boring, A.M.}
}
