Columbia subject headings:
Harvard subject headings:
Avant-garde (Aesthetics)--Germany (West)--History--20th century.
Beuys, Joseph--Criticism and interpretation.
Conceptual art--Germany (West)
Occultism in art.
Princeton subject headings:
Avant-garde (Aesthetics)--Germany (West)--History--20th century.
Beuys, Joseph--Criticism and interpretation.
Conceptual art--Germany (West).
Occultism in art.