00539naa#a2200169#i#450# EN\\bibl\106696 20251206153221.6 2221-3260 20250930b2025####ek#y0engy0150####ca RU The digital core of the smart-oriented enterprise business model Journal article Yaroslavl Yaroslavl State Technical University 2025 14 с. Journal article local Ablitarov Ernest Refatovich Kirilchuk Svetlana Petrovna theoreticaleconomy.ru