Willehalm-Kyot : der Gewährsmann Wolframs von Eschenbach / Werner Greub ; [als Manuskript hrsg. von Robert J. Kelder ]From grail christianity to Rudolf Steiner's anthroposophy / Werner Greub ; transl. from the first version of an unpublished German manuscript "Vom Gralschristentum zur Anthroposophie Rudolf Steiner", with excerpts from a second unpublished version entitled: "From the medieval grail to a modern science of the grail", plus a forew., notes and appendix with a transl. and rebuttal of C. Lindenberg's review "Beyond truth and reality" by Robert J. KelderHow the grail sites were found : Wolfram von Eschenbach and the reality of the grail / Werner Greub ; introd., transl. [from the German] and annot. by Robert J. KelderWillem van Oranje, Parzival en de Graal : hoe Wolfram von Eschenbachs graaloorden gevonden werden / Werner GreubWillem van Oranje, Parzival en de Graal : hoe Wolfram von Eschenbachs graaloorden gevonden werden / Werner Greub ; vert. [uit het Duits], ingel. en geannot. door Robert Jan KelderFrom grail christianity to Rudolf Steiner's anthroposophy / Werner Greub ; transl. from the first version of an unpublished German manuscript entitled "Vom Gralschristentum zur Anthroposophie Rudolf Steiner", with excerpts from a second unpublished version entitled "From the medieval grail to a modern science of the grail", with forew. and notes by Robert J. KelderWillem van Oranje, Parzival en de Graal : hoe Wolfram von Eschenbachs graaloorden gevonden werden / Werner GreubWillem van Oranje, Parzival en de Graal : hoe Wolfram von Eschenbachs graaloorden gevonden werden / Werner GreubWillem van Oranje, Parzival en de Graal : Wolfram von Eschenbach als historicus / Werner Greub ; vert. [uit het Duits], ingel. en geannot. door Robert Jan KelderHow the grail sites were found : Wolfram von Eschenbach as a historian / Werner Greub ; transl. from the German, introd. and annot. by Robert J. Kelder