TY JOUR TI THE PROCEDURE AND PROTECTION FROM POSSIBLE DISTRIBUTED DDOS ATTACKS ON INFORMATION RESOURCES OF EMERCOM OF RUSSIA KW DDoS-attack KW defense KW information systems KW method of dispersion KW traffic JO Problems of risk management in the technosphere AU Onov, V.A. AU Petrosyan, S.A. PY 2014 IS 2014 PB Saint-Petersburg University of State Fire Service of Emercom of Russia