TY - CPAPER AU - Mohammad Javanshir Giv TI - MODELING AND CLASSIFICATION OF ROOF ROCK BEHAVIOR IN COAL MINES CONSIDERING CONDITIONS OF EAST ALBORZ COAL MINES T2 - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; SGEM2011 11th International Multidisciplinary Scientific GeoConference PY - 2011 DO - 10.5593/sgem2011/s03.126 PB - Stef92 Technology ER -