Columbia subject headings:
Harvard subject headings:
Art, German--20th century--Exhibitions.
Concrete poetry, German--20th century--Exhibitions.
Experimental poetry, German--20th century--Exhibitions.
Visual poetry, German--20th century--Exhibitions.
Princeton subject headings:
Art, German--20th century--Exhibitions.
Concrete poetry, German--20th century--Exhibitions.
Experimental poetry, German--20th century--Exhibitions.
Poetry.
Visual poetry, German--20th century--Exhibitions.