@article {35693,
	title = {Vanadyl porphyrin distribution in the Alberta oil-sand bitumens},
	year = {1987},
	note = {In: Metal complexes in fossil fuels. Edited by R. H. Filby and J. F. Branthaver},
	institution = {American Chemical Society},
	address = {Washington, DC},
	author = {Filby, R. H. and Strong, D.}
}
