Columbia subject headings:
Harvard subject headings:
Collective memory--Germany--Congresses.
Collective memory--Poland--Congresses.
Germany--History, Local--Congresses.
Historical museums--Germany--History--Congresses.
Historical museums--Poland--History--Congresses.
Poland--History, Local--Congresses.
Princeton subject headings:
Collective memory--Germany--Congresses.
Collective memory--Poland--Congresses.
Historical museums--Germany--Congresses.
Historical museums--Poland--Congresses.