00627naa#a2200181#i#450# EN\\bibl\104743 20260213172203.5 2782-4799 20260212b2026####ek#y0engy0150####ca RU Media Product in a Dual Media Market: Media Marketing Interpretation and Distinction of Exchange Products in the Attention Economy Journal article Kemerovo Kemerovo State University 2026 11 с. Journal article local Маркетинг. 339.138 Vaganov Maksim Yuer'vich Emer Yulia Antonovna vestnik-hss.kemsu.ru