Columbia subject headings:
Harvard subject headings:
Collective memory--Germany--Congresses.
Germany (East)--Politics and government--1989-1990--Congresses.
Germany--History--Unification, 1990--Influence--Congresses.
Germany--History--Unification, 1990--Social aspects--Congresses.
Germany--Social conditions--1990---Congresses.
Princeton subject headings:
Collective memory--Germany--Congresses.
Germany (East)--Politics and government--1989-1990--Congresses.
Germany--History--Unification, 1990--Influence--Congresses.
Germany--History--Unification, 1990--Social aspects--Congresses.
Germany--Social conditions--1990---Congresses.