Columbia subject headings:
Bloch, Ernst, 1885-1977--Congresses.
Heine, Heinrich, 1797-1856--Congresses.
Utopias in literature--Congresses.
Utopias--Congresses.
Harvard subject headings:
Bloch, Ernst, 1885-1977--Congresses.
Heine, Heinrich, 1797-1856--Congresses.
Utopias in literature--Congresses.
Utopias--Congresses
Princeton subject headings:
Bloch, Ernst, 1885-1977--Congresses.
Heine, Heinrich, 1797-1856--Congresses.
Utopias in literature--Congresses.
Utopias--Congresses.