Columbia subject headings:
Harvard subject headings:
European Union countries--Economic integration--Congresses.
Germany--Economic conditions--1990---Congresses.
Germany--History--Unification, 1990--Economic aspects--Congresses.
Princeton subject headings:
European Union countries--Economic integration--Congresses.
Germany--Economic conditions--1990---Congresses.
Germany--History--Unification, 1990--Economic aspects--Congresses.