Columbia subject headings:
Klage.
Literature.
Nibelungenlied.
Wolfram, von Eschenbach, active 12th century--Knowledge and learning.
Harvard subject headings:
Klage.
Nibelungenlied.
Wolfram, von Eschenbach, active 12th century--Knowledge--Literature.
Princeton subject headings:
Wolfram, von Eschenbach, active 12th century--Criticism and interpretation.