00536naa#a2200169#i#450# EN\\bibl\117156 20260323080045.1 2712-7516 20260322b2026####ek#y0engy0150####ca RU The transformation of companies’ marketing activities under the influence of digital technologies Journal article Moscow ITBO University 2026 0 с. Journal article local Маркетинг. 339.138 Lepnuhov Sergey Vladimirovich zhpi.ru