TY JOUR TI MATHEMATICAL MODELING OF TECHNICAL EXPLOITATION’S ACTIVITIES OF ELECTRONIC COMPUTERS AND OFFICE EQUIPMENT IN THE SYSTEM OF EMERCOM OF RUSSIA KW mathematical modeling KW discrete Markov chains KW technical exploitation KW planning KW electronic computing and office equipment KW management decision JO Problems of risk management in the technosphere AU Kamenetskaya, N.V. AU Korolkov, A.P. AU Khitov, S.B. PY 2017 IS 2017 PB Saint-Petersburg University of State Fire Service of Emercom of Russia