Columbia subject headings:
Art, German--20th century--Congresses.
Art, German--France--20th century--Congresses.
Expressionism (Art)--France--Congresses.
Expressionism (Art)--Germany--Influence--Congresses.
Harvard subject headings:
Aesthetics, French--20th century--Congresses.
Aesthetics, German--20th century--Congresses.
Art, German--20th century--Congresses.
Art, German--France--20th century--Congresses.
Arts, French--20th century--Influence--Congresses.
Expressionism (Art)--France--Congresses.
Expressionism (Art)--Germany--Congresses.
Expressionism (Art)--Germany--Influence--Congresses.
Expressionism--Congresses.
Princeton subject headings:
Art, German--20th century--Congresses.
Art, German--France--20th century--Congresses.
Expressionism (Art)--France--Congresses.
Expressionism (Art)--Germany--Influence--Congresses.