@article {35546,
	title = {Non-crystalline inorganic matter-humic complexes in Athabasca oil sand and their relationship to bitumen recovery},
	volume = {2},
	year = {1987},
	pages = {253-271},
	publisher = {Applied Clay Science},
	author = {Kotlyar, L. S. and Kodama, H. and Sparks, B. D. and Grattan-Bellew, P. E.}
}
