Columbia subject headings:
Harvard subject headings:
Heidegger, Martin, 1889-1976--Contributions in ontology.
Hölderlin, Friedrich, 1770-1843--Criticism and interpretation.
Ontology in literature.
Philosophy in literature.
Princeton subject headings:
Heidegger, Martin, 1889-1976.
Hölderlin, Friedrich, 1770-1843--Criticism and interpretation.
Ontology in literature.
Philosophy in literature.