Columbia subject headings:
Arts, European--20th century--Congresses.
Classicism--Europe, German-speaking--History--20th century--Congresses.
Modernism (Aesthetics)--Europe, German-speaking--Congresses.
Harvard subject headings:
German literature--20th century--History and criticism--Congresses
Modernism (Art)--Congresses.
Modernism (Literature)--Congresses.
Princeton subject headings:
Arts, European--20th century--Congresses.
Classicism--Europe, German-speaking--History--20th century--Congresses.
Modernism (Aesthetics)--Europe, German-speaking--Congresses.