TY - CPAPER AU - Rinat Khasanov AU - Shavkat Gafurov AU - Almaz Mullakaev TI - THE COAL SEAMS OF THE VOLGA-URAL REGION (RUSSIA): COMPOSITION, TRACE ELEMENTS AND CONDITIONS OF THE FORMATION T2 - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Science and Technologies in Geology, Exploration and Mining PY - 2017 SP - 591 EP - 596 DO - 10.5593/sgem2017/11/s01.074 PB - STEF92 Technology ER -