@article {48184,
	title = {Self-association of organic acids in petroleum and Canadian bitumen characterized by low- and high-resolution mass spectrometry},
	volume = {21},
	year = {2007},
	pages = {1309-1316},
	publisher = {Energy \& Fuels},
	author = {Smith, D. F. and Schaub, T. M. and Rahimi, P. and Teclemariam, A. and Rodgers, R. P. and Marshall, A. G.}
}
