Columbia subject headings:
Hebbel, Friedrich, 1813-1863--Criticism and interpretation.
Hebbel, Friedrich, 1813-1863--Tragedies.
Harvard subject headings:
Hebbel, Friedrich, 1813-1863
Princeton subject headings:
Hebbel, Friedrich, 1813-1863--Criticism and interpretation.
Hebbel, Friedrich, 1813-1863--Tragedies.