1. Albaiges J, Bordon J, Walker W (1985) Petroleum isoprenoid hydrocarbons derived from catagenic degradation of archaebacterial lipids. Org Geochem 6(4):237–247
2. Barnard PC, Bastow MA (1991) Hydrocarbon generation, migration, alteration, entrapment and mixing in the Central and Northern North Sea. In: England WA, Fleet AJ (eds) Petroleum migration, geological society. Special Publication, London, pp 167–190
3. Bence AE, Kvenvolden KA, Kennicutt MC (1996) Organic geochemistry applied to environmental assessments of Prince William Sound, Alaska, after the Exxon Valdez oil spill—a review. Org Geochem 24:7–42
4. Connan J (1984) Biodegradation of crude oils in reservoirs. In: Brooks J, Welte DH (eds) Advances in petroleum geochemistry, vol 1. Academic Press, London, pp 299–335
5. Doust H, Omatsola E (1990) Niger Delta. In: Edwards JD, Santogrossi PA (eds) Divergent/passive margin basins, vol 48. AAPG Memoir, Tulsa, pp 239–248