00595naa#a2200193#i#450# EN\\bibl\131268 20260812121324.3 2782-4586 20260731b2026####ek#y0engy0150####ca RU Positioning a company in the Russian event marketing market Journal article Moscow ITBO University 2026 6 с. Journal article local Математическая экономия. 330.4 Izakova Natalya Borisovna Kapustina Larisa Mikhailovna Hursan A. V. jomeam.ru