Denitsa Slavova (2018). SURFACE WATER AND GROUNDWATER IN THE MARITSA IZTOK COMPLEX. SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 18th International Multidisciplinary Scientific GeoConference SGEM2018, Ecology, Economics, Education and Legislation, 869-876. https://doi.org/10.5593/sgem2018/5.1/s20.112