TY - CPAPER AU - IOAN Voina TI - DEFINITION OF THE SAFETY DEPTH WITHIN THE ANALYSIS OF THE SUBSIDENCE DUE TO EXPLOITATION OF MULTI-LAYERED DEPOSITS T2 - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 16th International Multidisciplinary Scientific GeoConference SGEM2016, Informatics, Geoinformatics and Remote Sensing PY - 2016 DO - 10.5593/sgem2016/b22/s09.023 PB - Stef92 Technology ER -