1. Barker, C., 1972, Aquathermal pressuring — role of temperature in development of abnormal pressure zones; Amer. Assoc. Petrol. Geol. Bull., 56, 2068–2071.
2. Clayton, J. L, and Koncz, I., Geochemistry of natural gas and carbon dioxide in the Békés basin — Implications for exploration; this volume, 187-199.
3. Clayton, J. L., Koncz, I., King, J. D., and Tatár, E., Organic geochemistry of crude oils and source rocks, Békés basin, Hungary; this volume, 161-185.
4. Clayton, J.L. Spencer, C.W., Koncz, I., and Szalay, Á., 1990, Generation and migration of hydrocarbon gas and carbon dioxide in the Békés basin, southeastern Hungary; Org. Geochem. 15,(3), 233–247.
5. Fertl, W. H., 1976, Abnormal formation pressure environments; in Fertl, W. H., (ed.), Abnormal formation pressures, Developments in petroleum science 2; Elsevier Scientific Publishing Company, New York, 1–48.