Leonid Vladimirovich Krivt︠s︡un

• Sot︠s︡ialisticheskai︠a︡ industrializat︠s︡ii︠a︡ i rost kulʹturno-tekhnicheskogo urovni︠a︡ trudi︠a︡shchikhsi︠a︡ T︠S︡entralʹnogo Chernozemʹi︠a︡