Columbia subject headings:
Authors, German--20th century--Political and social views--Congresses.
German literature--20th century--History and criticism--Congresses.
Literature and society--Congresses.
Harvard subject headings:
Authors, German--20th century--Political and social views--Congresses.
Dortmunder Gruppe 61--History--Congresses.
German literature--20th century--History and criticism--Congresses
German literature--Germany--Dortmund--Congresses.
Literature and society--Congresses.
Working class authors--Germany--Dortmund--Congresses.
Working class in literature--Congresses.
Working class writings, German--History and criticism--Congresses.
Princeton subject headings:
Authors, German--20th century--Political and social views--Congresses.
German literature--20th century--History and criticism--Congresses.
Literature and society--Congresses.