Columbia subject headings:
Harvard subject headings:
Collective memory--Europe--Congresses.
Concentration camps--Congresses.
Concentration camps--Germany--Congresses.
Germany--Politics and government--1933-1945--Congresses.
Holocaust memorials--Congresses.
World War, 1939-1945--Concentration camps--Congresses.
World War, 1939-1945--Monuments--Congresses.
World War, 1939-1945--Prisoners and prisons, German--Congresses.
World War, 1939-1945--Prisoners and prisons, German.
Princeton subject headings:
Collective memory--Europe--Congresses.
Holocaust memorials--Congresses.
Nazi concentration camps--Congresses.
World War, 1939-1945--Monuments--Congresses.
World War, 1939-1945--Prisoners and prisons, German--Congresses.