TY - CPAPER AU - Aleksey Benderev TI - HYDROCHEMICAL CONDITIONS IN THE REGION OF DOBRUDZHA COAL DEPOSIT (NE BULGARIA) T2 - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 13th SGEM GeoConference on SCIENCE AND TECHNOLOGIES IN GEOLOGY, EXPLORATION AND MINING PY - 2013 DO - 10.5593/sgem2013/ba1.v2/s02.025 PB - Stef92 Technology ER -