@article {33184,
	title = {Sand separation from Athabasca tar sand (Canada) by solvent-extraction},
	volume = {54},
	year = {1981},
	pages = {3883-3884},
	publisher = {Bulletin of the Chemical Society of Japan},
	author = {Yoshida, R. and Okutani, T. and Shimokawa, K. and et al}
}
