Columbia subject headings:
Harvard subject headings:
Arts, German--History--Congresses.
Europe, German-speaking--Civilization--Congresses.
German literature--History and criticism--Congresses
Germany--Civilization--Congresses.
Idealism, German--History--Congresses.
Philosophy, German--History--Congresses.
Princeton subject headings:
Arts, German--History--Congresses.
Europe, German-speaking--Civilization--Congresses.
German literature--History and criticism--Congresses.
Germany--Civilization--Congresses.
Idealism, German--History--Congresses.
Philosophy, German--History--Congresses.