{"id":"000303546","type":"book","title":"Die thrakische Festung Čertigrad im Balkan (ant. Hämus). Vorläufiger Bericht","pages":"121-143","container-title":"Thracia. Primus Congressus Studiorum Thracicorum, Serdicae 1972, 1","author":[{"family":"Velkov","given":"Velizar Iv."}]}