Columbia subject headings:
Harvard subject headings:
Omskai︠a︡ oblastʹ (Russia)--Biography.
Political persecution--Russia (Federation)--Omskai︠a︡ oblastʹ.
Political prisoners--Russia (Federation)--Omskai︠a︡ oblastʹ--Registers.
Princeton subject headings:
Omskai︠a︡ oblastʹ (Russia)--Biography.
Omskai︠a︡ oblastʹ (Russia)--History--20th century.
Political persecution--Russia (Federation)--Omskai︠a︡ oblastʹ--Registers.