TY - CPAPER AU - Radoslav Evgeniev AU - Krastina Malcheva AU - Tania Marinova AU - Hristo Chervenkov AU - Lilia Bocheva TI - ASSESSMENT OF DROUGHT IN BULGARIA IN RECENT YEARS THROUGH THE STANDARDIZED PRECIPITATION INDEX T2 - SGEM International Multidisciplinary Scientific GeoConference- EXPO Proceedings; 23rd International Multidisciplinary Scientific GeoConference Proceedings SGEM 2023, Energy and Clean Technologies, Vol 23, Issue 4.1 PY - 2023 SP - 245 EP - 252 DO - 10.5593/sgem2023/4.1/s19.31 PB - STEF92 Technology ER -