Columbia subject headings:
Culture--Congresses.
Germany--Civilization--Congresses.
Harvard subject headings:
Culture--Congresses.
Germany--Civilization--Congresses.
Princeton subject headings:
Culture--Study and teaching--Congresses.
German philology--Congresses.
Germany--Civilization--Congresses.
Germany--Intellectual life--History--Congresses.
Literature--History and criticism--Theory, etc.--Congresses.