@article {48311,
	title = {Vapor extraction of heavy oil and bitumen : a review},
	volume = {21},
	year = {2007},
	pages = {1562-1574},
	publisher = {Energy \& Fuels},
	author = {Upreti, S. R. and Lohi, A. and Kapadia, R. A. and El-Haj, R.}
}
