00554naa#a2200169#i#450# EN\\bibl\104882 20251227060200.6 2500-3372 20251002b2025####ek#y0engy0150####ca RU Development Trends and Efficiency Rating of Event Marketing in the Context of Digital Transformation Journal article Kemerovo Kemerovo State University 2025 9 с. Journal article local Marchenko Dar'ya Andreevna Shadrin Vladislav G. vestnik-pses.kemsu.ru