TY - CPAPER AU - Pavel Tsoi AU - O. A. Usoltseva TI - ESTIMATION OF THE JOINT ROUGHNESS COEFFICIENT OF UNIAXIALLY COMPRESSED ROCK SAMPLES USING A 3D SCANNER T2 - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 20th International Multidisciplinary Scientific GeoConference Proceedings SGEM 2020, Science and Technologies in Geology, Exploration And Mining PY - 2020 SP - 89 EP - 94 DO - 10.5593/sgem2020/1.2/s03.012 PB - STEF92 Technology ER -