{"id":"000418085","type":"article","title":"Tagung zur Archäologie der Protobulgaren in Šumen, VR Bulgarien, 15.-20. Oktober 1976","pages":"291-293","container-title":"Zeitschrift für Archäologie, 11.1977","author":[{"family":"Henning","given":"J."}],"issued":{"raw":"1977"}}