B.V. Uspensky. "GEODYNAMIC ASPECTS OF THE FORMATION AND PLACEMENT OF SUPERVISCOUS OIL RELEASES AND NATURAL BITUMENS OF THE CENTRAL AREAS OF THE URAL-VOLGA REGION." SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 19th SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings19th, Science and Technologies in Geology, Exploration And Mining, 2019, pp. 883-888. https://doi.org/10.5593/sgem2019/1.2/s06.112