Columbia subject headings:
Harvard subject headings:
Collective memory--Germany--Congresses.
Collective memory--Poland--Congresses.
Concentration camps--Poland--History--Congresses.
Crimes against humanity--Germany--History--Congresses.
Crimes against humanity--Poland--History--Congresses.
Historical museums--Germany--Congresses.
Historical museums--Poland--Congresses.
Memorials--Germany--Congresses.
Memorials--Poland--Congresses.
National socialism--Congresses.
Nazi concentration camps--Germany--History--Congresses.
Princeton subject headings:
Collective memory--Germany--Congresses.
Collective memory--Poland--Congresses.
Memorialization--Germany--Congresses.
Memorialization--Poland--Congresses.
World War, 1939-1945--Germany--Congresses.
World War, 1939-1945--Poland--Congresses.