@article {30358,
	title = {Cryogenic recovery of tar from Athabasca tar sands. In : Symposium on Tar sands, 26th Canadian Chemical Engineering Conference, Toronto, Ontario, October 3-6, 1976},
	year = {1976},
	pages = {10p},
	author = {Welmers, A. and Bergournou, M. A. and Baker, C. G. J.}
}
