@article {38107,
	title = {Structural analysis of Athabasca maltenes fractions using distortionless enhancement by polarization transfer (DEPT) related 13C n.m.r. sequences},
	volume = {70},
	year = {1991},
	pages = {90-94},
	publisher = {Fuel},
	author = {Kotlyar, L. S. and Morat, C. and Ripmeester, J. A.}
}
