{"id":"000995886","type":"book","title":"Units doubled and divided and the planning of forts and fortresses","publisher":"Oxbow Books","publisher-place":"Oxford","pages":"31-39","container-title":"Form and fabric. Studies in Rome's material past in honour of B. R. Hartley","author":[{"family":"Hassall","given":"M. W. C."}],"issued":{"raw":"1998"}}