TY JOUR TI FORCES AND MEANS OF THE UNIFIED STATE SYSTEM OF PREVENTION AND EMERGENCY SITUATIONS KW government KW population KW emergency KW security KW region KW subject KW implementation KW system JO NATURAL AND MAN-MADE RISKS (PHYSICO-MATHEMATICAL AND APPLIED ASPECTS) AU Koraev, K.V. AU Gorbunov, A.A. AU Prygov, A.V. PY 2014 IS 2014 PB Saint-Petersburg University of State Fire Service of Emercom of Russia