Free Geomechanical and Economic Assessment of the Width of Vandalism Protection Arrangement at Re-use of the Development Workings in the Coal Mines Shashenko A.N., Khozyaykina N.V., Smirnov A.V. DOI: 10.24000/0409-2961-2017-8-16-20 Year: 2017 Issue num: 8 more