{"id":"001068066","type":"book","title":"The byzantine fortress \" Krasen\" near Panagyurishte","publisher":"Verlag des Römisch-Germanischen Zentralmuseums","publisher-place":"Mainz","pages":"779-806","container-title":"Byzanz - Das Römerreich im Mittelalter : 2. Schauplätze","author":[{"family":"Grigorov","given":"Valeri."}],"issued":{"raw":"2010"}}