@mastersthesis {35312,
	title = {A biosystematic study of Arnica subgenus Arctica},
	volume = {Botany},
	year = {1987},
	pages = {247},
	address = {University of Alberta},
	url = {http://search.proquest.com/docview/251505497},
	author = {Downie, Stephen Roy}
}
