BBelyĭ medvedʹBelyĭ medvedʹde Valeriĭ I͡Aroslavt͡sevMateriasLinguisticsHistoryRussian languageLinguistic changeStudy and teachingRussian philologyLanguage and cultureEdiciones (1)Belyĭ medvedʹ (1989)Krasnoi͡arskoe knizhnoe izd-vo · ruso