Columbia subject headings:
Heidegger, Martin, 1889-1976.
Husserl, Edmund, 1859-1938.
Phenomenology.
Scheler, Max, 1874-1928.
Harvard subject headings:
Heidegger, Martin, 1889-1976
Husserl, Edmund, 1859-1938
Phenomenology.
Scheler, Max, 1874-1928
Princeton subject headings: