Columbia subject headings:
Harvard subject headings:
Memorials--Social aspects--Germany--Congresses.
Memory--Political aspects--Germany--Congresses.
Memory--Social aspects--Germany--Congresses.
Monuments--Social aspects--Germany--Congresses.
Princeton subject headings:
Memorials--Social aspects--Germany--Congresses.
Memory--Political aspects--Germany--Congresses.
Memory--Social aspects--Germany--Congresses.
Monuments--Social aspects--Germany--Congresses.