@article {30974,
	title = {Picea-Abies forests in the highlands of northern Alberta},
	volume = {23},
	year = {1977},
	pages = {127-146},
	publisher = {Vegetatio},
	url = {http://www.springerlink.com/content/m288838355313728/fulltext.pdf},
	author = {Achuff, Peter L. and La Roi, George H.}
}
