Columbia subject headings:
Sculpture, German--Germany (West)--20th century.
Sculpture, German.
Szymanski, Rolf--Catalogs.
Harvard subject headings:
Artists' preparatory studies--Germany (West)--Catalogs.
Szymanski, Rolf--Catalogs.
Szymanski, Rolf--Criticism and interpretation.
Princeton subject headings:
Artists' preparatory studies--Germany (West)--Catalogs.
Szymanski, Rolf--Catalogs.