{"id":"000441584","type":"article","title":"A magnetometer survey of the Colonia Ulpia Trajana near Xanten, West Germany","pages":"83-89","container-title":"Prospezioni archeologiche. Quaderni della Fondazione ing. Carlo M. Lerici, 6.1971","author":[{"family":"Scollar","given":"I."}],"issued":{"raw":"1971"}}