Columbia subject headings:
Arts, European--20th century--Philosophy.
Arts, Modern--20th century--Philosophy.
Authenticity (Philosophy)
Avant-garde (Aesthetics)--Europe--History--20th century.
Harvard subject headings:
Arts, European--20th century--Philosophy.
Arts, German--20th century--Philosophy.
Arts, Modern--20th century--Philosophy
Authenticity (Philosophy)
Avant-garde (Aesthetics)--Europe--History--20th century.
Avant-garde (Aesthetics)--Germany--History--20th century.
Princeton subject headings:
Arts, European--20th century--Philosophy.
Arts, Modern--20th century--Philosophy.
Authenticity (Philosophy)
Avant-garde (Aesthetics)--Europe--History--20th century.