TY - CPAPER AU - International authors TI - 19th International Multidisciplinary Scientific GeoConference SGEM 2019, Science and Technologies in Geology, Exploration and Mining, Vol. 19, Issue 1.4 T2 - International Multidisciplinary Scientific GeoConference SGEM 2019 PY - 2019 DO - 10.5593/sgem2019v/1.4 PB - STEF92 Technology ER -