Sborjanovo. - Stojanov, Totko (Исторически Музей - Исперих, 2015)
At head of title page: Istoričeski Muzej - Isperich. Sofijski Universitet "Sv. Kliment Ochridski", Istoričeski Fakultet, Katedra Archiologija/History Museum - Isperih. Sofia University St. Kliment Ohridski, Faculty of History, Department of Archaeology.