TY - CPAPER AU - Erika Škvareková TI - IMPACT OF GAS EXTRACTION FROM COAL DEPOSITS ON THE ENVIRONMENT T2 - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; SGEM2011 11th International Multidisciplinary Scientific GeoConference PY - 2011 DO - 10.5593/sgem2011/s03.119 PB - Stef92 Technology ER -