Ancient linear fortifications on the Lower Danube. Proceedings of the national colloquium “ancient linear fortifications on the left bank of the Lower Danube”
Valeriu Sirbu,Costin Croitoru
Carl Schuchhardtʼs contributions on ancient linear fortifications along the lower Danube (series ad limites Orbis Romani. IV)
Richard A. Mason,Costin Croitoru
