Columbia subject headings:
Harvard subject headings:
Janssen, Karl, 1855-1927.
Sculptors--Germany--Düsseldorf--Biography.
Sculpture, German--Germany--Düsseldorf.
Sculpture, Modern--19th century--Germany--Düsseldorf.
Sculpture--Study and teaching--Germany--Düsseldorf--History--19th century.
Princeton subject headings:
Akademie für Malerie, Bildhauerei und Architektur.
Janssen, Karl, 1855-1927.
Sculpture, German--19th century.
Sculpture, German--20th century--Düsseldorf.
Sculpture, German--20th century.
Sculpture, Modern--19th century--Germany--Düsseldorf.