Columbia subject headings:
Art, German--20th century.
Ehmsen, Heinrich, 1886-1964.
Harvard subject headings:
Art, German--20th century.
Ehmsen, Heinrich, 1886-1964--Exhibitions.
Ehmsen, Heinrich, 1886-1964.
Princeton subject headings:
Ehmsen, Heinrich, 1886-1964--Exhibitions.