@article {34828,
	title = {The influence of natural surfactants on interfacial charges in the hot-water process for recovering bitumen from the Athabasca oil sands},
	volume = {14},
	year = {1985},
	pages = {67-85},
	publisher = {Colloids and Surfaces},
	author = {Schramm, Laurier L. and Smith, Russell G.}
}
