Columbia subject headings:
German drama--19th century--History and criticism.
Hebbel, Friedrich, 1813-1863--Criticism and interpretation.
Harvard subject headings:
German drama--19th century--History and criticism--Congresses.
Hebbel, Friedrich, 1813-1863--Criticism and interpretation--Congresses.
Princeton subject headings:
German drama--19th century--History and criticism.
Hebbel, Friedrich, 1813-1863--Criticism and interpretation.