Krym v "chazarskoe" vremja (VIII-seredina X vv.) voprosy istorii i archeologii = Crimea in the "Khazar" times (VIIIth-middle Xth centuries) : problems of history and archeology - Mogaričev, Jurij Mironovič 1964-; Sazanov, Andrej Vladimirovič; Soročan, Serhij Borysovyč 1953- (Gelʹvetika, 2020)