Columbia subject headings:
Heidegger, Martin, 1889-1976--Congresses.
Idealism, German--Congresses.
Harvard subject headings:
Heidegger, Martin, 1889-1976--Congresses.
Idealism, German--Congresses.
Princeton subject headings:
Heidegger, Martin, 1889-1976--Congresses.
Idealism, German--Congresses.