TY JOUR TI MATHEMATICAL MODEL OF THE CRISIS MANAGEMENT CENTER OF THE EMERCOM OF RUSSIA BASED ON THE EVALUATION OF OPERATIONAL EFFICIENCY AND STATE MATRICES KW state matrix KW organizational systems KW efficiency assessment KW management KW mathematical model KW emergencies JO Siberian Fire and Rescue Bulletin AU Schastlivtsev, V.A. AU Bilyatdinov, K.Z. PY 2025 IS 2025 PB FSBEE HE Siberian Fire and Rescue Academy EMERCOM of Russia