Vasily Baryshnikov. EXPERIMENTAL-ANALYTICAL ESTIMATIONOF UNDERMINED SAFETY PILLAR. SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 15th International Multidisciplinary Scientific GeoConference SGEM2015, SCIENCE AND TECHNOLOGIES IN GEOLOGY, EXPLORATION AND MINING, 2015. https://doi.org/10.5593/sgem2015/b13/s3.037