@article {36564,
	title = {Population size and survivorship of the common garter snake, Thamnophis sirtalis, near the northern limits of its distribution},
	volume = {12},
	year = {1989},
	pages = {81-86},
	publisher = {Holarctic Ecology},
	url = {http://www.jstor.org/stable/3682191},
	author = {Larsen, Karl W. and Gregory, Patrick T.}
}
