Columbia subject headings:
Art, Russian--20th century--Exhibitions.
Art, Russian--Russia (Federation)--Exhibitions.
Avant-garde (Aesthetics)--Russia (Federation)--History--20th century--Exhibitions.
Ludwig, Peter, 1925-1996--Art collections--Exhibitions.
Museum Ludwig--Exhibitions.
Harvard subject headings:
Art, Modern--20th century--Soviet Union--Exhibitions.
Art, Russian--20th century--Exhibitions.
Art, Russian--Exhibitions.
Artists--Soviet Union--Biography.
Avant-garde (Aesthetics)--Russia (Federation)--History--20th century--Exhibitions.
Avant-garde (Aesthetics)--Soviet Union--Exhibitions.
Ludwig, Peter, 1925-1996--Art collections--Exhibitions.
Museum Ludwig--Exhibitions.
Princeton subject headings:
Art, Modern--20th century--Russia (Federation)--Exhibitions.
Art, Russian--Russia (Federation)--Exhibitions.
Avant-garde (Aesthetics)--Russia (Federation)--History--20th century--Exhibitions.
Ludwig, Peter, 1925-1996--Art collections--Exhibitions.
Museum Ludwig--Exhibitions.