Columbia subject headings:
German literature--History and criticism.
Literature--History and criticism.
Music and literature--History.
Performance poetry--History and criticism.
Philology.
Harvard subject headings:
German literature--History and criticism
Literature--History and criticism
Music and literature--History.
Performance poetry--History and criticism.
Philology
Princeton subject headings:
German literature--History and criticism.
Literature--History and criticism.
Music and literature--History.
Performance poetry--History and criticism.
Philology.