1. I. K. Bayrak, Oil and Gas Potential of the Mesozoic Foredeeps in the Ciscaucasus Region (Nauka, Moscow, 1982) [in Russian].
2. V. V. Belyaevsky, A. V. Egorkin, L. N. Solodilov, V. A. Rakitov, and A. G. Yakovlev, Izv., Phys. Solid Earth 43 (4), 268–278 (2007).
3. A. L. Bondar’, S. V. Vykalyuk, L. I. Serebryakova, and S. V. Enman, Fiz. Zemli, No. 4, 73–77 (1994).
4. E. A. Vangengeim, M. L. Vekua, V. I. Zhegallo, M. A. Pevzner, I. G. Taktakishvili, and A. S. Tesakov, Byull. Kom. Izuch. Chetvertichn. Perioda, Akad. Nauk SSSR, No. 60, 41–52 (1991).
5. N. K. Vereshchagin, Tr. Zool. Inst. Akad. Nauk SSSR 22, 9–74 (1957).