Columbia subject headings:
Aesthetics--Congresses.
Art and literature--Congresses.
Arts--Philosophy--Congresses.
Arts--Themes, motives--Congresses.
Harvard subject headings:
German literature.
Princeton subject headings:
Aesthetics--Congresses.
Art and literature--Congresses.
Arts--Philosophy--Congresses.
Arts--Themes, motives--Congresses.