Rusʹ, Italii︠a︡ i Vizantii︠a︡ v Srednevekovʹe /
Skrzhinskai︠a︡, E. Ch.(Elena Cheslavovna)
Skrzhinskai︠a︡, M. V.(Marina Vladimirovna)
Kotli︠a︡r, Mykola Fedorovych.
Sankt-Peterburg : Aleteĭi︠a︡,
2001.
Includes bibliographical references.