TY - CPAPER AU - Ryszard Kozakiewicz AU - Katarzyna Grzesik AU - Karolina Kossakowska TI - ENVIRONMENTAL ASPECTS OF REE RECOVERY TECHNOLOGY FROM SECONDARY SOURCES IN NEW KANKBERG AND COVAS T2 - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Energy and Clean Technologies PY - 2017 SP - 59 EP - 66 DO - 10.5593/sgem2017h/43/s18.008 PB - STEF92 Technology ER -