Columbia subject headings:
German literature--Congresses.
Hesse, Hermann, 1877-1962.
Harvard subject headings:
Authors, German--20th century--Biography--Congresses.
Cosmopolitanism in literature--Congresses.
German literature--20th century--History and criticism--Congresses
Hesse, Hermann, 1877-1962--Criticism and interpretation--Congresses.
Princeton subject headings:
Hesse, Hermann, 1877-1962--Criticism and interpretation--Congresses.