@mastersthesis {39788,
	title = {Effects of natural enemies, competition and host plant quality on introduced birch leaf miners (Hymenoptera : Tenthredinidae)},
	volume = {Entomology},
	year = {1995},
	pages = {162},
	address = {University of Alberta},
	url = {http://search.proquest.com/docview/304251747},
	author = {Digweed, Scott Cameron}
}
