@article {33813,
	title = {Fourier grain shape-analysis as a tool for indicating batch recoveries of bitumen from Athabasca tar sands},
	volume = {67},
	year = {1983},
	pages = {549},
	publisher = {AAPG Bulletin},
	author = {Smith, M. M. and Ehrlich, R. and Hardin, A.}
}
