{"id":"001447656","type":"book","title":"The Medieval Engineer and Castle at War","publisher":"Publications du Craham, Presses universitaires de Caen,.","publisher-place":"[Caen","pages":"343-352","container-title":"Château et frontière : actes du colloque international d'Aabenraa (Danemark, 24 - 31 août 2012","author":[{"family":"Purton","given":"Peter"}],"issued":{"raw":"2014"}}