Columbia subject headings:
Harvard subject headings:
Perceval (Legendary character)--Romances--History and criticism.
Struggle in literature.
Wolfram, von Eschenbach, active 12th century--Characters.
Wolfram, von Eschenbach, active 12th century. Parzival.
Princeton subject headings:
Perceval (Legendary character)--History and criticism.
Struggle in literature.
Wolfram, von Eschenbach, 12th cent. Parzival.