Columbia subject headings:
Phenomenology--Congresses.
Scheler, Max, 1874-1928--Ethics--Congresses.
Harvard subject headings:
Phenomenology--Congresses.
Scheler, Max, 1874-1928--Ethics--Congresses.
Princeton subject headings:
Phenomenology--Congresses.
Scheler, Max, 1874-1928--Ethics--Congresses.