@mastersthesis {39505,
	title = {Steam-assisted gravity drainage with vertical steam injection wells},
	year = {1994},
	pages = {223},
	address = {University of Calgary},
	keywords = {oil extraction, SAGD},
	url = {http://search.proquest.com/docview/303966308},
	author = {Sawhney, Gurpreet Singh}
}
