Columbia subject headings:
Barth, Heinrich, 1890-1965--Congresses.
Phenomenology--Congresses.
Harvard subject headings:
Barth, Heinrich, 1890-1965--Congresses.
Fink, Eugen--Congresses.
Patočka, Jan, 1907-1977--Congresses.
Phenomenology--Congresses.
Philosophy, Modern--Congresses.
Princeton subject headings:
Barth, Heinrich, 1890-1965--Congresses.
Phenomenology--Congresses.