Columbia subject headings:
Art, European--20th century--Exhibitions.
Art, Modern--20th century--Exhibitions.
Art--Private collections--Austria--Exhibitions.
Modernism (Art)--Europe--Exhibitions.
Modernism (Art)--Exhibitions.
Harvard subject headings:
Art, European--20th century--Exhibitions
Art, Modern--20th century--Europe--Exhibitions.
Art, Modern--20th century--Exhibitions
Art--Austria--Private collections--Exhibitions.
Art--Private collections--Austria--Exhibitions.
Modernism (Art)--Europe--Exhibitions.
Modernism (Art)--Exhibitions.
Princeton subject headings:
Art, European--20th century--Exhibitions.
Art, Modern--20th century--Exhibitions.
Modernism (Art)--Europe--Exhibitions.
Modernism (Art)--Exhibitions.