00456naa#a2200169#i#450# EN\\bibl\37845 20250128224226.2 2500-3372 20200529b2020####ek#y0engy0150####ca RU Digital Marketing Evolution Journal article Kemerovo Kemerovo State University 2020 6 с. Journal article local Shadrin Vladislav G. Kotova Olga N. zh-szf.ru