Columbia subject headings:
Heidegger, Martin, 1889-1976.
Kierkegaard, Søren, 1813-1855.
Ontology.
Harvard subject headings:
Heidegger, Martin, 1889-1976
Kierkegaard, Søren, 1813-1855
Ontology.
Princeton subject headings:
Heidegger, Martin, 1889-1976.
Kierkegaard, Søren, 1813-1855.
Ontology.