Columbia subject headings:
Art, Belgian--19th century--Exhibitions.
Avant-garde (Aesthetics)--Belgium--History--19th century--Exhibitions.
XX (Group of artists)--Exhibitions.
Harvard subject headings:
Princeton subject headings:
Avant-garde (Aesthetics)--Belgium--History--19th century--Exhibitions.
Painting, Belgian--Exhibitions.
Painting, Modern--19th century--Belgium--Exhibitions.