Columbia subject headings:
Harvard subject headings:
Community development, Urban--Germany--Congresses.
Intergovernmental cooperation--Germany--Congresses.
Metropolitan areas--Germany--Congresses.
Regional planning--Germany--Congresses.
Princeton subject headings:
Community development, Urban--Germany--Congresses.
Intergovernmental cooperation--Germany--Congresses.
Metropolitan areas--Germany--Congresses.
Regional planning--Germany--Congresses.