Columbia subject headings:
Harvard subject headings:
Chrétien, de Troyes, active 12th century. Érec et Énide
Dialogue.
Hartmann, von Aue, active 12th century. Erec.
Hartmann, von Aue, active 12th century. Iwein.
Princeton subject headings:
Chrétien, de Troyes, active 12th century. Érec et Énide.
Dialogue.
Hartmann, von Aue, 12th cent. Erec.
Hartmann, von Aue, active 12th century. Iwein.