@article {27374,
	title = {An investigation of the vanadyl porphyrin complexes of the Athabasca oil sands},
	volume = {30},
	year = {1966},
	pages = {207-221},
	publisher = {Geochimica et Cosmochimica Acta},
	author = {Millson, M. F. and Montgomery, D. S. and Brown, S.R.}
}
