Columbia subject headings:
Heidegger, Martin, 1889-1976--Criticism and interpretation.
Kierkegaard, Søren, 1813-1855--Criticism and interpretation.
Nietzsche, Friedrich Wilhelm, 1844-1900--Criticism and interpretation.
Philosophy, Modern--19th century.
Philosophy, Modern--20th century.
Harvard subject headings:
Heidegger, Martin, 1889-1976--Criticism and interpretation.
Kierkegaard, Søren, 1813-1855--Criticism and interpretation.
Nietzsche, Friedrich Wilhelm, 1844-1900--Criticism and interpretation.
Philosophy, Modern--19th century.
Philosophy, Modern--20th century.
Princeton subject headings:
Communication--Philosophy.
Existentialism.
Heidegger, Martin, 1889-1976--Criticism and interpretation.
Kierkegaard, Søren, 1813-1855--Criticism and interpretation.
Nietzsche, Friedrich Wilhelm, 1844-1900--Criticism and interpretation.