Columbia subject headings:
World War, 1939-1945--Atrocities--Germany.
World War, 1939-1945--Atrocities--Soviet Union.
Harvard subject headings:
World War, 1914-1918--Prisoners and prisons, German
World War, 1914-1918--Prisoners and prisons, Russian
Princeton subject headings:
World War, 1939-1945--Atrocities--Germany.
World War, 1939-1945--Atrocities--Soviet Union.