@article {35216,
	title = {Source changes in McMurray Formation and effects on recovery of bitumen in Athabasca oil sands},
	volume = {70},
	year = {1986},
	pages = {649-650},
	publisher = {AAPG Bulletin},
	author = {Smith, M. M. and Ehrlich, R. and Hardin, A.}
}
