Norn, Otto. <br/><br/>
At se det usynlige :  Mysteriekult og ridderidealer / 
Otto Norn. 
 - København :  Gad,  1982. 
 - 131 p. :  ill. ;  29 cm. 
<br/><br/> Summaries in English and German. 
<br/><br/>Bibliography: p. 123-[129] 
<br/><br/><label>ISBN: </label>8712652784 
<br/><br/><label>Subjects--Topical Terms: </label><br/>Mural painting and decoration, Danish.<br/>Mural painting and decoration, Medieval--Denmark.<br/>Christian art and symbolism--Denmark--Medieval, 500-1500.<br/>Grail--Legends--Illustrations.<br/>Knights and knighthood in art.<br/>Grail in art.