00481naa#a2200157#i#450# EN\RIOR\bibl\114059 20260316233457.1 2409-6024 20260126b2026####ek#y0engy0150####ca RU THE SERVICE SECTOR AS A DRIVER FOR REGIONAL DIVERSIFICATION Journal article Moscow Publishing Center RIOR 2026 11 с. Journal article local Repushevskaya Ol'ga Aeksandrovna build-pro.editorum.ru