Columbia subject headings:
Art, German--20th century--Exhibitions.
Art--Private collections--Germany (West)--Exhibitions.
Jäger, Rolf, 1920---Art collections--Exhibitions.
Harvard subject headings:
Art, German--Exhibitions.
Art, Modern--20th century--Germany (West)--Exhibitions.
Expressionism (Art)--Germany (West)--Exhibitions.
Jäger, Rolf--Art collections--Exhibitions.
Pankok, Otto, 1893-1966--Exhibitions.
Städtische Galerie Schloss Oberhausen--Exhibitions.
Princeton subject headings: