@mastersthesis {45263,
	title = {Detecting ecosystem level disturbances},
	volume = {Biological Sciences},
	year = {2004},
	pages = {199},
	address = {University of Calgary},
	keywords = {Cardinal River Coals Ltd.},
	url = {http://search.proquest.com/docview/305223403},
	author = {Irvine, Robyn L.}
}
