1. N. B. Vassoevich, Tr. VNIGRI, No. 128, 9 (1958).
2. A. F. Dobryanskii, Petroleum Geochemistry (Gostoptekhizdat, Moscow, 1948) [in Russian].
3. V. A. Uspenskii, Inytroduction to Petroleum Geochemistry (Nedra, Leningrad, 1970) [in Russian].
4. A. A. Kartsev, Fundamentals of Oil and Gas Chemistry (Nedra, Moscow, 1969) [in Russian].
5. O. A. Radchenko, Geochemical Features of Occurrence of World Oil Provinces (Nedra, Leningrad, 1965) [in Russian].