@article {37667,
	title = {Structural characterization of heavy oil and bitumen upgrading reactions. In : 15th Annual AOSTRA/University/Industry Technical Review Meeting and Seminar, September 30-October 2, 1990, compiled by Dagmar Losert },
	volume = {Project 783},
	year = {1990},
	note = {University of Alberta},
	institution = {AOSTRA Library and Information Services},
	author = {Gray, Murray R.}
}
