TY - CPAPER AU - Lidia-Lenuta Balan TI - POLLUTION OF WATER RESOURCES T2 - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 19th SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings19th, Science and Technologies in Geology, Exploration And Mining PY - 2019 SP - 277 EP - 284 DO - 10.5593/sgem2019v/1.4/s02.034 PB - STEF92 Technology ER -