TY - CPAPER AU - Ilie Onica TI - TECHNICAL AND ECONOMIC OPTIMIZATION OF THE PARAMETERS OF THE TOP COAL CAVING MINING METHOD IN THE JIU VALLEY BASIN 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.v1/s03.070 PB - Stef92 Technology ER -