@inproceedings{sgem2016s03032, title = {DEGRADATION OF THE STATE OF A BALL TRACK AT THE ZP 6600}, author = {Petr Klouda}, booktitle = {SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 16th International Multidisciplinary Scientific GeoConference SGEM2016, Science and Technologies in Geology, Exploration and Mining}, year = {2016}, pages = {}, publisher = {Stef92 Technology}, doi = {10.5593/sgem2016/b12/s03.032} }