TY JOUR TI APPLICATION OF METHODS OF MATHEMATICAL MODELLING AT THE SOLUTION OF THE PROBLEM OF IDENTIFICATION AND THE ASSESSMENT OF RADIATION, CHEMICAL AND BIOLOGICAL SITUATION IN ZONE OF EMERGENCY KW mathematics modeling KW mass service system KW linear programming KW simplex method KW radiation KW chemical and biological contamination JO Problems of risk management in the technosphere AU Kamenetskaya, N.V. AU Medvedeva, O.M. AU Khitov, S.B. PY 2016 IS 2016 PB Saint-Petersburg University of State Fire Service of Emercom of Russia