{"id":"001569753","type":"article","title":"Relative Chronology of the Pottery of the Early Medieval Lower Danube Popina-Garvan Archaeological Group","publisher":"NOUS Publishers","publisher-place":"Sofia","pages":"21-38","container-title":"Archaeologia Bulgarica, 22 (2018","author":[{"family":"Grozdanova","given":"Galina"}],"issued":{"raw":"2018"}}