@article {33830,
	title = {Holocene timberline fluctuations in Jasper National Park},
	volume = {221},
	year = {1983},
	pages = {261-263},
	publisher = {Science},
	url = {http://www.sciencemag.org/cgi/content/abstract/221/4607/261},
	author = {Kearney, M. S. and Luckman, B. H.}
}
