{"id":"001004967","type":"book","title":"Types of fortification in sites in southern Italy and Spain during the Neolithic and Copper Ages","publisher":"Sheffield Academic Press","publisher-place":"Sheffield","pages":"15-24","container-title":"Encounters and transformations : The archaeology of Iberia in transition","author":[{"family":"Martín de la Cruz","given":"José C."}],"issued":{"raw":"1997"}}