TY - CPAPER AU - Vlastimil Hudeček TI - NEW DEGASSING TRENDS IN THE UNDERGROUND PARTS OF GASEOUS COAL MINES IN THE CZECH REPUBLIC T2 - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; SGEM2011 11th International Multidisciplinary Scientific GeoConference PY - 2011 DO - 10.5593/sgem2011/s03.129 PB - Stef92 Technology ER -