Author: Mezhdunarodnai︠a︡ nauchnai︠a︡ konferent︠s︡ii︠a︡ "Rossiĭskai︠a︡ gosudarstvennostʹ v lit︠s︡akh i sudʹbakh ee sozidateleĭ, IX-XI vv." (3rd 2012 Lipet︠s︡k, Russia)