00622naa#a2200169#i#450# EN\\bibl\83736 20251221163151.7 1994-5655 20240620b2024####ek#y0engy0150####ca RU Infant mortality in the European North of Russia in the late XIX–early XX centuries Journal article Syktyvkar FSBI FIC "Komi Scientific Center of the Ural Branch of the Russian Academy of Sciences" 2024 5 с. Journal article local Историческая демография. 314.148 Vishnyakova D. V. komisc.editorum.ru