00529naa#a2200169#i#450# EN\RIOR\bibl\90358 20250211054655.2 2500-1469 20250204b2025####ek#y0engy0150####ca RU Analysis of population reproduction processes in the Russian Federation Journal article Moscow Publishing Center RIOR 2025 9 с. Journal article local Ippolitov Konstantin Gennad'evich Mikhailova Ekaterina Olegovna riorpub.com