TY - CPAPER AU - Sorin Vatavu TI - STRUCTURAL DETAILS AND OPERATIONAL AND CALCULATION PARTICULARITIES OF HYDRAULIC POWER SYSTEMS FOR THE ROOF SUPPORTS 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 - 817 EP - 824 DO - 10.5593/sgem2017/13/s03.103 PB - STEF92 Technology ER -