Columbia subject headings:
Harvard subject headings:
Dramatists, German--19th century--Biography--Congresses.
Immermann, Karl Leberecht, 1796-1840--Congresses.
Theater--Germany--Düsseldorf--History--19th century--Congresses.
Theatrical producers and directors--Germany--Düsseldorf--Biography--Congresses.
Princeton subject headings:
Dramatists, German--19th century--Biography--Congresses.
Immermann, Karl Leberecht, 1796-1840--Congresses.
Theater--Germany--Düsseldorf--History--19th century--Congresses.
Theatrical producers and directors--Germany--Düsseldorf--Biography--Congresses.