Columbia subject headings:
Harvard subject headings:
Art--Germany--Finance--Congresses.
Demographic transition--Germany--Congresses.
Germany--Cultural policy--Congresses.
Germany--Population--Congresses.
Germany--Social policy--Congresses.
Princeton subject headings:
Art--Germany--Finance--Congresses.
Demographic transition--Germany--Congresses.
Germany--Cultural policy--Congresses.
Germany--Population--Congresses.
Germany--Social policy--Congresses.