TY - CPAPER AU - Ilie Onica TI - FINITE ELEMENT METHOD ANALYSIS OF THE CROWN PILLAR STABILITY IN THE CASE OF THE RO?IA POIENI COPPER DEPOSIT 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/s03.034 PB - Stef92 Technology ER -