00647naa#a2200193#i#450# EN\\bibl\39895 20241218134742.3 2308-8877 20201026b2020####ek#y0engy0150####ca RU DESCRIPTION OF ELECTRONIC COMMERCE SYSTEMS BY FUZZY LOGIC Journal article Voronezh FSBE Institution of Higher Education Voronezh State University of Forestry and Technologies named after G.F. Morozov 2020 6 с. Journal article local Математика. 51 Yudina N. Kushcheva I. Sergeevna Nazarov B. T. zh-szf.ru