00592naa#a2200169#i#450# EN\INFRA-M\bibl\126117 20260802121809.7 2500-0497 20260618b2026####ek#y0engy0150####ca RU A historical-grammatical retrospective of the living word in the context of Russian-Church Slavonic diglossia Journal article Moscow INFRA-M Academic Publishing LLC. 2026 24 с. Journal article local История. Теоретические вопросы. 93 Lazarev A. I. zh-szf.ru