1. New aromatic biomarkers and possible maturity indicators found in New Albany Shale extracts;Chou;Organic Geochemistry,1986
2. Clayton, J. L., Ulmishek, G. F., Bogino, V. A., Keller, M. B. and Pozniakevich, Z. L. (1998) Petroleum geochemistry of the Pripyat Basin, Byelarus — A Devonian-age rift containing thermally immature source rocks and oils. AAPG Bulletin, accepted
3. The stratigraphy of the Kimmeridge Clay of the Dorset type area and its correlation with some other Kimmeridgian sequences;Cox;Report Institute of Geological Sciences,1981
4. Anoxic environments and oil source bed genesis;Demaison;AAPG Bulletin,1980
5. Goodwin, T. W. (1971) Biosynthesis. In Carotenoids, ed. O. Isler, pp. 577–636. Birkhäuser Verlag, Basel