Daniela Ionela Ciolea, Emilia Cornelia Dunca. "RESEARCH AND PROPOSALS TO USE SLUDGE ON WASTE DUMPS LUPENI, ROMANIA." SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Ecology, Economics, Education and Legislation, 2017, pp. 805-812. https://doi.org/10.5593/sgem2017/51/s20.105