Michal Zasadzien. "INNOVATIVE APPLICATION OF QUALITY MANAGEMENT TOOLS IN A HARD COAL MINE." 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/s3.054