1. Heating rate effects on aromatic maturity indicators;Alexander,1986
2. Organic geochemistry of extra-heavy crude oils from the Eastern Venezuelan basin;Cassani,1985
3. Well site geochemistry by programmed pyrolysis;Clementz,1979
4. Tricyclic terpanes in the Athabasca oil sands: Their geochemistry;Ekweozor,1983
5. Estudio Geoquimico Regional de la Cuenca de Maracaibo INTEVEP;Gallango;Internal report,1984