1. Superdeep Boreholes in Russia and in Surrounded Regions, Ed. by E. B. Nalivkina and B. N. Khakhaev (A. P. Karpinsky Russian Geological Research Institute, St. Petersburg, 1995) [in Russian].
2. V. G. Zagorodnyi, D. D. Mirskaya, and S. N. Suslova, Geological Structure of Pechenga Volcanogenic-Sedimentary Series (Nauka, Moscow-Leningrad, 1964) [in Russian].
3. Kola Superdeep Borehole. Continental Core Deep Structure Research by Drilling Kola Superdeep Borehole, Ed. by E. A. Kozlovskii (Nedra, Moscow, 1984) [in Russian].
4. Kola Superdeep Borehole. Scientific Results and Research Experience, Ed. by V. P. Orlov and N. P. Laverov (Tekhnoneftegaz, Moscow, 1998) [in Russian].
5. F. F. Gorbatsevich, Acoustic Polaroscopy for Rocks (Kola Scientific Center RAS, Apatity, 1995) [in Russian].