Columbia subject headings:
Arthurian romances--History and criticism.
Erec (Legendary character)--Romances--History and criticism.
Romances, German--History and criticism.
Harvard subject headings:
Arthurian romances--History and criticism.
Erec (Legendary character)--Romances--History and criticism
Romances, German--History and criticism.
Princeton subject headings:
Hartmann, von Aue, 12th cent. Erec.