Columbia subject headings:
Harvard subject headings:
Collective memory--Germany--Congresses.
Dark tourism--Germany--Congresses.
Germany--History--1933-1945--Congresses.
National socialism--Congresses.
Princeton subject headings:
Collective memory--Germany--Congresses.
Dark tourism--Germany--Congresses.
Germany--History--1933-1945--Congresses.
National socialism--Congresses.