TY JOUR TI MATHEMATICAL MODEL OF THE REQUEST FLOW IN DISTRIBUTED COMPUTATION SYSTEMS ON THE BASIC OF THE MEDIAN MODIFICATION OF STOCHASTIC EM-ALGORITHM KW complex automation system and communications of EMERCOM of Russia KW EM algorithm KW DNS server on the Internet JO Problems of risk management in the technosphere AU Prorok, V.Y. AU Korytko, A.A. PY 2014 IS 2014 PB Saint-Petersburg University of State Fire Service of Emercom of Russia