TY - CPAPER AU - Roland Iosif Moraru TI - RESEARCH ON METHANE EMISSION MECHANISM AND PATTERN IN A LONGWALL COAL FACE AT LIVEZENI COLLIERY T2 - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 14th SGEM GeoConference on SCIENCE AND TECHNOLOGIES IN GEOLOGY, EXPLORATION AND MINING PY - 2014 DO - 10.5593/sgem2014/b13/s3.065 PB - Stef92 Technology ER -