@article {43829,
	title = {Diffusivity of CO2, Ch4, C2H6 and N-2 in Athabasca bitumen},
	volume = {80},
	year = {2002},
	pages = {116-125},
	publisher = {Canadian Journal of Chemical Engineering},
	author = {Upreti, S. R. and Mehrotra, A. K.}
}
