{"id":"000528654","type":"article","title":"Beitrag zur materiellen Kultur des mittelalterlichen Sozopol. (Bulg.m.dtsch.Res.) -","pages":"43-54","container-title":"Izvestija na Arheologičeskija institut. Bulletin de l'Institut d'archéologie, 27.1964","author":[{"family":"Velkov","given":"Velizar Iv."}],"issued":{"raw":"1964"}}