TY JOUR TI Stability of functioning of ductings of connection of the systems of fire-prevention defence KW fire warning KW stability KW faulttollerance KW vitality KW protecting from hindrances KW communication channel KW hindrance JO Scientific and analytical journal «Vestnik Saint-Petersburg university of State fire service of EMERCOM of Russia» AU Terekhin, S.N. AU Vlasov, S.V. AU Sineshchuk, M.Y. PY 2012 IS 2012 PB Saint-Petersburg University of State Fire Service of Emercom of Russia