{"id":"001023424","type":"book","title":"The late twelfth century gatehouse at Chepstow Castle, Monmoutshire, Wales","publisher":"Centre de Recherches Archéologiques et Historiques Médiévales (CRAHM)","publisher-place":"Caen","pages":"27-40","container-title":"Château Gaillard. 20. Études de castellologie médiévale. Actes du Colloque International de Gwatt (Suisse), 2-10 septembre 2000","author":[{"family":"Avent","given":"Richard"}],"issued":{"raw":"2002"}}