00725naa#a2200169#i#450# EN\\bibl\121610 20260505193632.2 1994-5655 20260428b2026####ek#y0engy0150####ca RU The history of the socio-political development and state structure of Mordovia in the XX century in the works of Prof. V. A. Yurchyonkov Journal article Syktyvkar FSBI FIC "Komi Scientific Center of the Ural Branch of the Russian Academy of Sciences" 2026 6 с. Journal article local Историческая наука. Вспомогательные исторические науки. 930 Uchvatov P. S. komisc.editorum.ru