TY - CPAPER AU - Jakub Lomoznik AU - Jiri Fries TI - CHANGE OF THE MATERIAL POSITION ORIENTATION T2 - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Energy and Clean Technologies PY - 2017 SP - 127 EP - 134 DO - 10.5593/sgem2017/42/s17.017 PB - STEF92 Technology ER -