@article {33746,
	title = {Comparison of the chemical-structure of coal hydrogenation products, Athabasca tar sand bitumen and Green River shale oil},
	volume = {7},
	year = {1983},
	pages = {161-171},
	publisher = {Fuel Processing Technology},
	author = {Yoshida, R. and Yoshida, T. and Nakata, Y. and et al}
}
