Columbia subject headings:
Harvard subject headings:
Cities and towns--Germany--Congresses.
Germany--Civilization--20th century--Congresses.
Germany--Civilization--21st century--Congresses.
Germany--Cultural policy--Congresses.
Princeton subject headings:
Cities and towns--Germany--Congresses.
Germany--Civilization--20th century--Congresses.
Germany--Civilization--21st century--Congresses.
Germany--Cultural policy--Congresses.