TY JOUR TI THE USE OF FUZZY LOGIC IN VALUATION OF BEGINNING PROBABILITY OF EMERGENCY KW risk of emergency beginning KW fuzzy logic KW output fuzzy system JO Scientific and analytical journal «Vestnik Saint-Petersburg university of State fire service of EMERCOM of Russia» AU Labinskiy, A.Y. PY 2017 IS 2017 PB Saint-Petersburg University of State Fire Service of Emercom of Russia