Columbia subject headings:
Avant-garde (Aesthetics)
Ball, Hugo, 1886-1927--Criticism and interpretation.
Harvard subject headings:
Art, Modern--Philosophy.
Avant-garde (Aesthetics)
Avant-garde (Aesthetics)--Germany.
Ball, Hugo, 1886-1927--Criticism and interpretation.
Performing arts--Germany--Philosophy.
Performing arts--Philosophy
Postmodernism (Literature)
Postmodernism (Literature)--Germany.
Princeton subject headings:
Ball, Hugo, 1886-1927--Aesthetics.
Ball, Hugo, 1886-1927--Criticism and interpretation.