00651naa#a2200169#i#450# EN\\bibl\92977 20260314005241.6 1994-5655 20241226b2024####ek#y0engy0150####ca RU Specificity of transformation of the age structure of the Russian population of Estonia (2000-2021) Journal article Syktyvkar FSBI FIC "Komi Scientific Center of the Ural Branch of the Russian Academy of Sciences" 2024 7 с. Journal article local Демография. Изучение народонаселения. 314 Uznarodov D. I. ras.editorum.ru