Regionalʹnai︠a︡ nauchno-prakticheskai︠a︡ konferent︠s︡ii︠a︡ posvi︠a︡shchennai︠a︡ 70-letii︠u︡ vossoedinenii︠a︡ Zapadnoĭ Belarusi s BSSR (2009 Brest, Belarus)