Columbia subject headings:
Philosophy, German.
Schopenhauer, Arthur, 1788-1860.
Harvard subject headings:
Existentialism--Congresses.
Phenomenology--Congresses.
Philosophy, German--19th century--Congresses.
Schopenhauer, Arthur, 1788-1860--Congresses.
Princeton subject headings:
Phenomenology.
Philosophy, German.
Schopenhauer, Arthur, 1788-1860.