TY - CPAPER AU - Vesselin Alexandrov TI - ASSESSMENT OF SEASONAL PRECIPITATION IN NORTH WEST BULGARIA T2 - SGEM International Multidisciplinary Scientific GeoConference EXPO Proceedings; SGEM2011 11th International Multidisciplinary Scientific GeoConference PY - 2011 DO - 10.5593/sgem2011/s17.104 PB - Stef92 Technology ER -