Author: Vsesoi︠u︡znoe obshchestvo politicheskikh katorzhan i ssylʹnoposelent︠s︡ev (Soviet Union). Sekt︠s︡ii︠a︡ po izuchenii︠u︡ revoli︠u︡t︠s︡ionnogo dvizhenii︠a︡ sredi evreev