1. L. A. Anishchenko, Organic Geochemistry and Petroleum Potential of the Permian Deposits of the Northern Cis-Ural Trough (Nauka, St. Petersburg, 2004) [in Russian].
2. T. K. Bazhenova, V. K. Shimanskii, V. F. Vasileva, A. I. Shapiro, L. A. Yakovleva, and L. I. Klimova, Organic Geochemistry of the Timan–Pechora Basin (VNIGRI, St. Petersburg, 2008) [in Russian].
3. T. K. Bazhenova, S. A. Bogoslovskii, and A. I. Shapiro, “Geochemistry of Paleozoic of the Southwestern Pai-Khoi slope and hydrocarbon generation in the Korotaikha basin,” Razved. Okhr. Nedr, No. 6, 21–26 (2010).
4. L. T. Belyakova, V. I. Bogatskii, and B. P. Bogdanov, Basement of the Timan–Pechora Petroleum Basin (Kirovskaya oblastnaya tipografiya, Kirov, 2008) [in Russian].
5. A. K. Burnham, K. E. Peters, and O. Schenk, “Evolution of vitrinite reflectance models,” AAPG, Search and Discovery Article #41982 (2017).