||Snow 1977, no. 302: "A small study made interesting, in part, by the author's inclusion of 86 of his own professional sketches of miniatures from Escurial MS T.j.l. Several points of artistic interest are made in comments on the variety of artists undeniably present in the MS artwork, the concentration of effort to depict detail, and the effort observed in the creation of a gallery of devil-figures. Three-dimensionality and even animation seem to have been intended by these artists. Thirty-eight of the CSM are mentioned but text and illustration are lacking for cantiga 111 (ch. V). Also comments the divergences between the story told in the poem and the accompanying miniature."