Columbia subject headings:
Heine, Heinrich, 1797-1856--Literary style.
Heine, Heinrich, 1797-1856--Symbolism.
Metaphor.
Stone in literature.
Harvard subject headings:
Heine, Heinrich, 1797-1856--Literary style.
Heine, Heinrich, 1797-1856--Symbolism.
Metaphor.
Stone in literature.
Princeton subject headings:
Heine, Heinrich, 1797-1856--Criticism and interpretation.
Metaphor.