Free Effect of Coal Mechanodestruction on Formation of Gasdynamic Processes at Coal Layers Underground Mining Dyrdin V.V., Fofanov A.A., Kim T.L., Smirnov V.G., Kozlov A.A., Plotnikov E.A., Tatsiyenko V.P. DOI: 10.24000/0409-2961-2017-8-10-15 Year: 2017 Issue num: 8 more