Author: Russia) Regionalʹnai︠a︡ nauchnai︠a︡ konferent︠s︡ii︠a︡ posvi︠a︡shchënnai︠a︡ 100-letii︠u︡ so dni︠a︡ rozhdenii︠a︡ Sergei︠a︡ Danilovicha Mastepanova (2013 Armavir