00613naa#a2200169#i#450# EN\INFRA-M\bibl\42152 20251221135100.7 2587-9111 20210301b2021####ek#y0engy0150####ca RU Formation of Information Centers and Information Systems at Enterprises As a Factor of Increasing the Efficiency of Functioning Journal article Moscow INFRA-M Academic Publishing LLC. 2021 4 с. Journal article local Экономика. Экономические науки. 33 Shishkin Andrey N. naukaru.ru