Columbia subject headings:
Documentary films--Germany--History.
Motion pictures--Political aspects--Germany--History.
Protest movements in mass media--History.
Harvard subject headings:
Documentary films--Germany--History--Congresses.
Motion pictures--Political aspects--Germany--History--Congresses.
Protest movements in mass media--History--Congresses.
Princeton subject headings:
Documentary films--Germany--History.
Motion pictures--Political aspects--Germany--History.
Protest movements in mass media--History.