Columbia subject headings:
Motion picture producers and directors--Germany--History--20th century--Congresses.
Motion pictures--Germany--History--20th century--Congresses.
Oberhausener Manifest--Congresses.
Harvard subject headings:
Motion picture producers and directors--Germany--History--20th century--Congresses.
Motion pictures--Germany--History--20th century--Congresses.
Oberhausener Manifest--Congresses.
Princeton subject headings:
Motion picture producers and directors--Germany--History--20th century--Congresses.
Motion pictures--Germany--History--20th century--Congresses.
Oberhausener Manifest--Congresses.