{"id":"000329130","type":"book","title":"Sur le problème du système de fortification de Nicopolis ad Istrum (Mésie Inférieure)","pages":"299-302","container-title":"Roman frontier studies 1989. Proceedings of the XVth International Congress of Roman Frontier Studies, [Canterbury 2-10 September 1989","author":[{"family":"Rousseva-Slokoska","given":"L."}]}