Columbia subject headings:
German literature--Study and teaching (Secondary)
Lenz, Siegfried, 1926-2014. Gleichgültige.
Harvard subject headings:
German literature--Study and teaching (Secondary)
Lenz, Siegfried, 1926- Gleichgültige.
Lenz, Siegfried, 1926-2014. Gleichgültige.
Princeton subject headings:
Literature--Study and teaching.