@article {35773,
	title = {Application of solid-state SI-29 and C-13 nuclear magnetic-resonance spectroscopy to the characterization of inorganic matter humic complexes in Athabasca oil sands},
	year = {1988},
	pages = {54},
	institution = {Abstract of Papers of the American Chemical Society},
	author = {Kotlyar, L. S. and Ripmeester, J. A.}
}
