Columbia subject headings:
Art, Russian--Exhibitions.
Art, Soviet--Exhibitions.
Avant-garde (Aesthetics)--Soviet Union--Exhibitions.
Costakis, Georgi--Art collections--Exhibitions.
Harvard subject headings:
Art, Modern--20th century--Soviet Union--Exhibitions.
Art, Russian--Exhibitions.
Avant-garde (Aesthetics)--Soviet Union--Exhibitions.
Costakis, Georgi--Art collections--Exhibitions.
Princeton subject headings:
Art, Modern--20th century--Soviet Union--Exhibitions.
Art, Russian--Exhibitions.
Avant-garde (Aesthetics)--Soviet Union--Exhibitions.
Costakis, Georgi--Art collections--Exhibitions.