00645naa#a2200169#i#450# EN\\bibl\121031 20260503095533.7 1994-5655 20260428b2026####ek#y0engy0150####ca RU Ethnic regions of Russia in the era of the first five-year plans: contexts and interpretations in modern Russian historiography Journal article Syktyvkar FSBI FIC "Komi Scientific Center of the Ural Branch of the Russian Academy of Sciences" 2026 5 с. Journal article local Всеобщая история. 94 Petachenko G. A. komisc.editorum.ru