@article {46980,
	title = {Effect of divalent cations and surfactants on silica-bitumen interactions},
	volume = {45},
	year = {2006},
	pages = {7482-7490},
	publisher = {Industrial \& Engineering Chemical Research},
	author = {Zhao, H. Y. and Long, J. and Masliyah, J. H. and Xu, Z. H.}
}
