TY - CPAPER AU - Rares Halbac-Cotoara-Zamfir TI - UNDERSTANDING AND MANIPULATING DROUGHT - A PERMANENT CHALLENGE T2 - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 17th International Multidisciplinary Scientific GeoConference SGEM2017, Energy and Clean Technologies PY - 2017 SP - 577 EP - 584 DO - 10.5593/sgem2017h/43/s19.073 PB - STEF92 Technology ER -