Columbia subject headings:
Art, European--20th century--Congresses.
Avant-garde (Aesthetics)--Europe--History--20th century--Congresses.
Occultism in art--Congresses.
Spirituality in art--Congresses.
Harvard subject headings:
Art, European--20th century--Congresses.
Avant-garde (Aesthetics)--Europe--History--20th century--Congresses.
Occultism in art--Congresses.
Spirituality in art--Congresses.
Princeton subject headings:
Art, European--20th century--Congresses.
Avant-garde (Aesthetics)--Europe--History--20th century--Congresses.
Occultism in art--Congresses.
Spirituality in art--Congresses.