TY - CPAPER AU - Andrei Andras AU - Iosif Andras AU - Ovidiu Bogdan Tomus TI - MATHEMATICAL MODELS OF POWERED ROOF SUPPORT INTERACTION WITH SURROUNDING ROCKS 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 - 529 EP - 536 DO - 10.5593/sgem2017/13/s03.067 PB - STEF92 Technology ER -