Когтев, О. and Сергиенко, А. 2020. NATURAL RESEARCH OF DEBIT OF METHANE FROM MASSIF OF LONGWALL FACE 604 OF COLLIERY GROUP “PERSHOTRAVENSKE” MINE “YUVILEINA”. SWorldJournal. 2, 03-02 (Feb. 2020), 58–64. DOI:https://doi.org/10.30888/2663-5712.2020-03-02-026.