Columbia subject headings:
Austria--Civilization--20th century--Congresses.
Modernism (Aesthetics)--Austria--Vienna--History--Congresses.
Music--Austria--Vienna--20th century--History and criticism--Congresses.
Vienna (Austria)--Civilization--20th century--Congresses.
Harvard subject headings:
Austria--Civilization--20th century--Congresses.
Modernism (Aesthetics)--Austria--Vienna--History--Congresses.
Music--Austria--Vienna--20th century--History and criticism--Congresses.
Vienna (Austria)--Civilization--20th century--Congresses.
Princeton subject headings:
Austria--Civilization--20th century--Congresses.
Modernism (Aesthetics)--Austria--Vienna--History--Congresses.
Music--Austria--Vienna--20th century--History and criticism--Congresses.
Vienna (Austria)--Civilization--20th century--Congresses.