Blaue Reiter (Group of artists)--Exhibitions
Folk art--Exhibitions--Germany--Bielefeld
Expressionnisme (art)--Catalogues d'exposition--Allemagne
Avant-garde (Aesthetics)--Exhibitions--Germany--Bielefeld
Expressionism (Art)--Exhibitions--Germany--Bielefeld
Glass underpainting--Exhibitions--Germany--Bielefeld
Art--Catalogues d'exposition--20e siècle--Allemagne