TY JOUR TI FORECAST OF THE OPTIMAL OPTIONS OF DELIVERY OF MATERIAL SUPPLY UNDER CONDITIONS OF REGIONAL EMERGENCY ON THE BASIS OF THE FUZZY SET THEORY KW options of transportation of material means KW optimum solution of an indistinct transport task KW indistinct set KW indistinct number KW function of accessory JO NATURAL AND MAN-MADE RISKS (PHYSICO-MATHEMATICAL AND APPLIED ASPECTS) AU Vilkov, V.B. AU Kozlova, I.V. PY 2015 IS 2015 PB Saint-Petersburg University of State Fire Service of Emercom of Russia