Klenke, Sister M Amelia, Chrétien's Symbolism and Cathedral Art, PMLA, 70, 1955, 223-243

[KCL]

Gral: , 233,20-233,21 (228)

Quellen - allgemein: 416,25-416,30 (243), 453,11-453,22 (243), 827,1-827,4 (243)

Religion:

Symbolismus: