Prediction of the viscosity of lubricating oil blends Fuel, Volume 68, Issue 6, June 1989, Pages 809-811 J.M. Al-Besharah, C.J. Mumford, S.A. Akashah, O. Salman
Crude Oil and Refined Product Fingerprinting: Principles Environmental Forensics, 2005, Pages 339-407 Zhendi Wang, Merv Fingas, Chun Yang, Jan H. Christensen