The crucible of Europe : the ninth and tenth centuries in European history 2026-02-16T07:59:30+03:00 DEBUG: VuFind\ILS\Driver\Folio: Token taken from global cache: eyJhbGciOiJIUzI1NiJ9.eyJzdWIiO... - Barraclough, Geoffrey, 1908- (Thames and Hudson, 1976)