00693naa#a2200193#i#450# EN\\bibl\106685 20251205224204.5 2221-3260 20250930b2025####ek#y0engy0150####ca RU Promising directions for enhancing the competitiveness of Russian regions in foreign economic activity: theoretical and empirical analysis Journal article Yaroslavl Yaroslavl State Technical University 2025 15 с. Journal article local Kosobuckaya Anna Yur'evna Opoikova Elena Alekseevna Tsebekova Ekaterina Petrovna Treschevskiy Yuriy Igorevich chemintech.ru