Columbia subject headings:
Europe--Politics and government--Congresses.
European Union countries--Foreign relations--Germany--Congresses.
European Union--Germany--Congresses.
European federation--Congresses.
Germany--Foreign relations--European Union countries--Congresses.
Harvard subject headings:
Europe--Politics and government--Congresses.
European Union countries--Foreign relations--Germany--Congresses.
European Union--Germany--Congresses.
European federation--Congresses
Germany--Foreign relations--European Union countries--Congresses.
Princeton subject headings: