Andrei Andras, Iosif Andras, Ovidiu Bogdan Tomus. "MATHEMATICAL MODELS OF POWERED ROOF SUPPORT INTERACTION WITH SURROUNDING ROCKS." SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Science and Technologies in Geology, Exploration and Mining (2017): 529-536. https://doi.org/10.5593/sgem2017/13/s03.067