@mastersthesis {32838,
	title = {A stand growth model for trembling aspen in the Prairie Provinces of Canada},
	volume = {Forest Science},
	year = {1981},
	pages = {125},
	address = {University of Alberta},
	keywords = {Populus},
	url = {http://search.proquest.com/docview/303201242},
	author = {Grabowski, Thomas Ignacy John}
}
