TY - CPAPER AU - Jiri Fries TI - OPTIMUM PARAMETERS OF MINING MACHINES FOR SPECIFIC CONDITIONS T2 - 14th International Multidisciplinary Scientific GeoConference SGEM 2014, Science and Technologies in Geology, Exploration and Mining, Vol. 14, Book 1, Volume 3 PY - 2014 DO - 10.5593/sgem2014/b13/s3.057 PB - Stef92 Technology ER -