1. Cycloalkane constituents of the bitumen from Green River shale;Anders;Geochimica et Cosmochimica Acta,1971
2. Asphaltenes – problematic but rich in potential;Akbarzadeh;Oilfield Review,2007
3. Alteration of crude oil by waters and bacteria–evidence from geochemical and isotope studies;Bailey;American Association of Petroleum Geologists Bulletin,1973
4. Crude-oil correlations and their role in exploration;Barbat;American Association of Petroleum Geologists Bulletin,1967
5. Application of chemical analysis of crude oils to problems of petroleum geology study of crude oils of Forest Sands of Bernstein Field, Trinidad, B. W. I;Barr;American Association of Petroleum Geologists Bulletin,1943