Columbia subject headings:
Art, Modern--20th century--Exhibitions.
Art, Russian--Soviet Union--Exhibitions.
Harvard subject headings:
Art, Modern--20th century--Soviet Union--Exhibitions.
Art, Russian--Exhibitions.
Artists--Soviet Union--Biography.
Ludwig-Stiftung für Kunst und Internationale Verständigung, Aachen--Exhibitions.
Neue Galerie--Sammlung Ludwig, Aachen--Exhibitions.
Princeton subject headings:
Art, Russian--Exhibitions.
Ludwig-Stiftung für Kunst und Internationale Verständigung, Aachen--Exhibitions.
Neue Galerie--Sammlung Ludwig, Aachen--Exhibitions.