@article {49093,
	title = {The impact of oil viscosity heterogeneity on the production characteristics of tar sand and heavy oil reserves. Part II. Intelligent, geotailored recovery processes in compositionally graded reservoirs},
	volume = {47},
	year = {2008},
	pages = {40-49},
	publisher = {Journal of Canadian Petroleum Technology},
	author = {Gates, I. D. and Adams, J. and Larter, S.}
}
