TY - CPAPER AU - Stephan Beitler TI - STATE OF THE ART IN UNDERGROUND COAL MINING AUTOMATION AND INTRODUCTION OF A NEW SHIELD-DATA-BASED HORIZON CONTROL APPROACH T2 - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 13th SGEM GeoConference on SCIENCE AND TECHNOLOGIES IN GEOLOGY, EXPLORATION AND MINING PY - 2013 DO - 10.5593/sgem2013/ba1.v1/s03.066 PB - Stef92 Technology ER -