Columbia subject headings:
Art--Collectors and collecting--Russia (Federation)--Moscow--Biography.
Collectors and collecting--Russia (Federation)--Moscow--Biography.
Costakis, Georgi.
Painting--Private collections--Russia (Federation)--Moscow--History--20th century.
Harvard subject headings:
Art, Russian--Collectors and collecting--Greece.
Art, Russian--Collectors and collecting--Soviet Union.
Avant-garde (Aesthetics)--Russia (Federation)--History--20th century
Costakis, Georgi
Princeton subject headings: