Columbia subject headings:
Harvard subject headings:
Heine, Heinrich, 1797-1856--Correspondence.
Heine, Heinrich, 1797-1856--Homes and haunts--Germany--Helgoland.
Princeton subject headings:
Heine, Heinrich, 1797-1856--Homes and haunts--Germany--Helgoland.
Heine, Heinrich, 1797-1856. Correspondence.