Columbia subject headings:
Schmidt-Rottluff, Karl, 1884-1976--Exhibitions.
Watercolor painting, German--20th century--Exhibitions.
Harvard subject headings:
Schmidt-Rottluff, Karl, 1884-1976--Exhibitions.
Watercolor painting, German--20th century--Exhibitions.
Princeton subject headings:
Schmidt-Rottluff, Karl, 1884-1976--Exhibitions.