TY - CPAPER AU - A. Galkin TI - ASSESSMENT OF ECONOMIC EFFICIENCY OF DIFFERENT WAYS OF HEATING MINE WORKING AIR T2 - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 16th International Multidisciplinary Scientific GeoConference SGEM2016, Science and Technologies in Geology, Exploration and Mining PY - 2016 DO - 10.5593/sgem2016/b12/s03.012 PB - Stef92 Technology ER -