TY - CPAPER AU - Liliya Bocheva TI - SPATIO-TEMPORAL VARIABILITY OF HAILSTORMS FOR BULGARIA DURING THE PERIOD 1961-2010 T2 - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; 15th International Multidisciplinary Scientific GeoConference SGEM2015, ENERGY AND CLEAN TECHNOLOGIES PY - 2015 DO - 10.5593/sgem2015/b41/s19.137 PB - Stef92 Technology ER -