TY - CPAPER AU - Janusz Nowak TI - UNDERGROUND BROWN COAL GASIFICATION AND PRODUCTION OF GAS FOR POWER INDUSTRY T2 - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; SGEM2012 12th International Multidisciplinary Scientific GeoConference PY - 2012 DO - 10.5593/sgem2012/s03.v1072 PB - Stef92 Technology ER -