1. Distribution of n-paraffins as a clue to recognition of source beds;Bray;Geochim. Cosmochim. Acta,1961
2. Clark Jr., R.C.: Occurrence of normal paraffin hydrocarbons in nature. Woods Hole Oceanographic Institution, Technical Report, Ref. no. 66–34, July 1966.
3. Kvenvolden, K.A.: Evidence for transformations of normal fatty acids in sediments –Paper presented at the Third International Meeting on Organic Geochemistry –London –26–28 September 1966, Pergamon Press, Oxford, to be published.
4. On the depth, time and mechanism of petroleum generation;Philippi;Geochim. Cosmochim. Acta,1965
5. Philippi, G.T.: Essentials of the petroleum formation process are organic source material and a subsurface temperature controlled reaction mechanism. Proceedings of the 4th Intern. Mtg. Organic Geochemistry –Amsterdam –16–18 September 1968, Pergamon/Vieweg 1969, p. 25–46.