{"id":"001068955","type":"book","title":"B'lgaro-vizantijskata granica pri chan Omurtag i Erkesijata","publisher":"Geo Pres","publisher-place":"Nova Zagora","pages":"131-140","container-title":"Arheologičeski i istoričeski izsledvanija v Novozagorsko : Sbornik","author":[{"family":"Georgiev","given":"Pavel"}],"issued":{"raw":"1999"}}