Columbia subject headings:
Hacks, Peter, 1928-2003--Criticism and interpretation.
Harvard subject headings:
Genius in literature.
German drama--20th century--History and criticism.
German literature--20th century--History and criticism
Hacks, Peter, 1928-2003--Criticism and interpretation.
Hacks, Peter, 1928-2003--Dramatic works.
Literature and society.
Princeton subject headings:
Hacks, Peter, 1928-2003--Criticism and interpretation.