TSar Simeon Veliki (893-927) zlatnii︠a︡t vek na Srednovekovna Bulgarii︠a︡
Bozhilov, Ivan.
Sofii︠a︡ Izd-vo na Otechestvenii︠a︡ front
1983
Bibliography: p218-[222]
Simeon King of Bulgaria approximately 868-927.