Columbia subject headings:
Arts, Modern--20th century--Congresses.
Avant-garde (Aesthetics)--Congresses.
Literature, Modern--20th century--History and criticism--Congresses.
Postmodernism--Congresses.
Harvard subject headings:
Literature, Modern--20th century--History and criticism
Postmodernism (Literature)
Princeton subject headings:
Arts, Modern--20th century--Congresses.
Avant-garde (Aesthetics)--Congresses.
Literature, Modern--20th century--History and criticism--Congresses.
Postmodernism--Congresses.