Callay, Brigitte L, The Concept of Destiny in Chrétien's Perceval, in Hoecke, Willy van, Tournoy, Gilbert, Verbeke, Werner, Arturus Rex. Volumen II. Acta conventus Lovaniensis 1987, Mediaevalia Lovaniensia. Series I/Studia, 17, Leuven University Press, Leuven, 1991, 134-144
in Hoecke u.a. 1991
Quellen - Chrétien:
312,26-312,27 (137 Anm. 17)