Barbara BiaƂecka. "ASSESSMENT OF THE POSSIBILITY OF USING WATERS FROM POLISH HARD COAL MINES AS A SOURCES OF RARE EARTH ELEMENTS." SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 18th International Multidisciplinary Scientific GeoConference SGEM2018, Science and Technologies in Geology, Exploration and Mining, 2018, pp. 11-18. https://doi.org/10.5593/sgem2018/1.4/s04.002