1. Aizenshtat, Z., Miloslovski, I., and Tannenbaum, E., 1986a, Thermal behavior of immature asphalts and related kerogens, Org. Geochem. 10:537–546.
2. Aizenshtat, Z., Pinsky, I., and Baruch, B., 1986b, Electron spin resonance of stabilized free radicals in sedimentary organic matter, Org. Geochem. 9:321–329.
3. Albrecht, P., Vandenbroucke, M., and Mandengue, M., 1976, Geo-chemical studies on the organic matter from the Douala Basin (Cameroon)—I. Evolution of the extractable organic matter and the formation of petroleum, Geochim. Cosmochim. Acta 40:791–799.
4. Allan, J., and Douglas, A. G., 1974, Alkanes from pyrolytic degradation of bitumenous vitrinites and sporinites. In Advances in Organic Geochemistry 1973 (B. Tissot and G. Bienner, eds.), Editions Technip, Paris, pp. 203–206.
5. Alpern, B., 1970, Classification pétrographique des constituants organiques fossiles des roches sédimentaries, Rev. Insti. Fr. Pet. 25:1233–1267.