@article {48487,
	title = {Characterization of acidic species in Athabasca bitumen and bitumen heavy vacuum gas oil by negative-ion ESI FT-ICR MS with and without acid-ion exchange resin prefractionation},
	volume = {22},
	year = {2008},
	pages = {2372-2378},
	publisher = {Energy \& Fuels},
	author = {Smith, Donald F. and Schaub, Tanner M. and Kim, Sunghwan and Rodgers, Ryan P. and Rahimi, Parviz and Teclemariam, Alem and Marshall, Alan G.}
}
