{"id":"001011262","type":"book","title":"Swedish castles in warfare","publisher":"Centre de Recherches Archéologiques Médiévales","publisher-place":"Caen","pages":"55-57","container-title":"Château Gaillard. 19. Études de castellologie médiévale. Actes du Colloque International de Graz (Autriche), 22-29 août 1998","author":[{"family":"Eriksson","given":"Torkel"}],"issued":{"raw":"2000"}}