{"id":"000480663","type":"article","title":"Le protéichisme du système des fortifications pendant la haute époque byzantine dans les terres bulgares. (Bulg.m.franz.Res.) -","pages":"11-23","container-title":"Archeologija. Organ na Archeologičeskija institut i muzej pri Bălgarskata akademija na naukite, 15,4.1973","author":[{"family":"Ovcharov","given":"D."}],"issued":{"raw":"1973"}}