Free Methane Hazard of Old Mined-out Spaces Zaburdayev V.S., Podobrazhin S.N. DOI: 10.24000/0409-2961-2019-8-7-12 Year: 2019 Issue num: 8 more
Free Improvement of Degassing Efficiency at Coal Seams High Productive Development Kolikov K.S., Slastunov S.V., Mazanik E.V. DOI: 10.24000/0409-2961-2019-1-71-76 Year: 2019 Issue num: 1 more
