@article {35629,
	title = {Sulphur-33 nuclear magnetic resonance of oxidized petroleum asphaltene},
	volume = {25},
	year = {1987},
	pages = {36-38},
	publisher = {Magnetic Resonance in Chemistry},
	url = {http://www.blackwell-synergy.com/doi/abs/10.1111/Journal1365-2907.2005.00053.x},
	author = {McIntrye, D. D. and Strausz, O. P.}
}
