{"id":"003047652","type":"book","title":"The Ladoga fortress (Staraya Ladoga) on the trade route 'from the Varangians to the Greeks'","publisher":"Rudolf-Habelt Verlag","publisher-place":"Bonn","pages":"167-180","container-title":"Fortifications in their natural and cultural landscape: from organising space to the creation of power : | ISSN: 9783774943742","author":[{"family":"Grigorʹeva","given":"N. V."}],"issued":{"raw":"2022"}}