00647naa#a2200181#i#450# EN\\bibl\115143 20260304075348.3 2712-7516 20260121b2026####ek#y0engy0150####ca RU Digital Transformation of the Economy: The Impact of AI, Blockchain, and Big Data on Productivity Journal article Moscow ITBO University 2026 0 с. Journal article local Факультеты, отделения высших учебных заведений. 378.096 Arsahanova Zina Abdullovna Kovrizhnykh Olga Evgenievna jomeam.ru