TY  - CPAPER
AU  - Borys Borowka
TI  - COST ANALYSIS OF DRIVING DOG HEADINGS IN COAL MINE OF THE UPPER SILESIAN COAL BASIN (POLAND)
T2  - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 16th International Multidisciplinary Scientific GeoConference SGEM2016, Science and Technologies in Geology, Exploration and Mining
PY  - 2016
DO  - 10.5593/sgem2016/b12/s03.028
PB  - Stef92 Technology
ER  -