{"id":"000988348","type":"book","title":"The Norman fortress on Ludgate Hill in the city of London, England, recent excavations 1986-1990","publisher":"Centre de Recherches Archéologiques Médiévales","publisher-place":"Caen","pages":"335-345","container-title":"Château Gaillard. 15. Études de castellologie médiévale. Actes du Colloque International tenu à Komburg bei Schwäbisch Hall (Allemagne), 26 août-1er septembre 1990","author":[{"family":"Watson","given":"Bruce"}],"issued":{"raw":"1992"}}