Poag, James F, Wolfram von Eschenbach's Grail-Stone: A Christological Symbol, Christianity and Literature, 28, iii, 1979, 31-39

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Gral: , 120,27-121,2 (34), 453,24-454,8 (34), 469,8-469,13 (38), 469,14-469,28 (37), 470,1-470,20 (34, 36), 470,21-470,30 (34), 795,30-796,4 (37), 817,4-817,7 (34), 818,20-818,23 (35)

Religion: