@mastersthesis {42464,
	title = {Crown characteristics and understory light in young trembling aspen stands},
	volume = {Renewable Resources},
	year = {2000},
	address = {University of Alberta},
	keywords = {Populus},
	url = {http://search.proquest.com/docview/304643926},
	author = {Pinno, Bradley Dean}
}
