{"id":"001238557","type":"book","title":"Za rannevizantijskata ukrepitelna sistema na Filipopol. (On the early byzantine fortification system of Philippopolis)","pages":"52-66","container-title":"Godišnik na Archeologičeski Muzej Plovdiv, 10 (2001","author":[{"family":"Kesjakova","given":"Elena."}],"issued":{"raw":"2001"}}