@inproceedings{sgem2013s03043, title = {NEW DEVICES USED IN DETERMINING AND ASSESSING MECHANICAL CHARACTERISTICS OF COAL}, author = {Witold Bialy}, booktitle = {SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 13th SGEM GeoConference on SCIENCE AND TECHNOLOGIES IN GEOLOGY, EXPLORATION AND MINING}, year = {2013}, pages = {}, publisher = {Stef92 Technology}, doi = {10.5593/sgem2013/ba1.v1/s03.043} }