TY JOUR TI MANAGEMENT OF EMERGENCY SITUATIONS RISKS KW natural and technogenic risk KW management of risk KW methodical apparatus of risk analysis in emergency situations KW concept of risk analysis KW methods for forecasting emergency situations JO Problems of risk management in the technosphere AU Troyanov, O.M. AU Reva, Y.V. AU Komashinsky, V.I. PY 2018 IS 2018 PB Saint-Petersburg University of State Fire Service of Emercom of Russia