{"id":"001193886","type":"book","title":"Oloven pečat na knjaz Boris-Mihail ot Pliska. Sceau de plomb du Prince Boris-Mihail de Pliska","pages":"3-6","container-title":"Numizmatika (Sofija), 25,1/2 (1991","author":[{"family":"Vassilev","given":"Radoslav"}],"issued":{"raw":"1991"}}