Moraru, Roland Iosif, BABUT, GABRIEL BUJOR, Popescu-Stelea, . Mihai (2016). FIELD TEST RESULTS AND PREREQUISITES FOR METHANE BUILD - UP SIMULATION IN LONGWALL FACE GOAFS. SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 16th International Multidisciplinary Scientific GeoConference SGEM2016, Science and Technologies in Geology, Exploration and Mining, 405-412. https://doi.org/10.5593/sgem2016/b12/s03.053