Columbia subject headings:
Harvard subject headings:
Arts, Modern--20th century--Congresses
Avant-garde (Aesthetics)--Austria--Vienna--Congresses.
Vienna (Austria)--Intellectual life--Congresses.
Princeton subject headings:
Arts, Modern--20th century--Congresses.
Avant-garde (Aesthetics)--Austria--Vienna--Congresses.
Vienna (Austria)--Intellectual life--Congresses.