Komissii︠a︡ T︠S︡IK SSSR po organizat︠s︡ii prazdnovanii︠a︡ 20-letii︠a︡ revoli︠u︡t︠s︡ii 1905 g., Institut istorii partii (Moscow, Russia), I︠U︡. K. Milonov, Abram Markovich Kat︠s︡