Columbia subject headings:
Art, French--20th century--Exhibitions.
Art, German--20th century--Exhibitions.
Avant-garde (Aesthetics)--France--Exhibitions.
Avant-garde (Aesthetics)--Germany--Exhibitions.
Harvard subject headings:
Art, French--20th century--Exhibitions
Art, German--20th century--Exhibitions.
Avant-garde (Aesthetics)--France--Exhibitions.
Avant-garde (Aesthetics)--Germany--Exhibitions.
Princeton subject headings:
Art, French--20th century--Exhibitions.
Art, German--20th century--Exhibitions.
Avant-garde (Aesthetics)--France--Exhibitions.
Avant-garde (Aesthetics)--Germany--Exhibitions.