Prini︠a︡tie khristianstva narodami T︠S︡entralʹnoĭ i I︠U︡go-Vostochnoĭ Evropy i kreshchenie Rusi /
Litavrin, G. G.
Moskva : Nauka,
1988.
At head of title: Akademii︠a︡ nauk SSSR. Institut slavi︠a︡novedenii︠a︡ i balkanistiki.
Slavs