Columbia subject headings:
Harvard subject headings:
Soviet Union--History--German occupation, 1941-1944--Congresses.
World War, 1939-1945--Campaigns--Soviet Union--Congresses
World War, 1939-1945--Historiography--Congresses.
Princeton subject headings:
Soviet Union--History--German occupation, 1941-1944.
World War, 1939-1945--Campaigns--Soviet Union.
World War, 1939-1945--Historiography.