Columbia subject headings:
Harvard subject headings:
Berlin Wall, Berlin, Germany, 1961-1989--Anniversaries, etc.--Congresses.
Berlin Wall, Berlin, Germany, 1961-1989--Anniversaries, etc.--Press coverage--Europe--Congresses.
Germany--History--Unification, 1990--In mass media--Congresses.
Germany--History--Unification, 1990--Press coverage--Europe--Congresses.
Mass media--Europe--Congresses.
Princeton subject headings:
Berlin Wall, Germany, 1961-1989--Historiography.
Berlin Wall, Germany, 1961-1989--In mass media.