||Snow 1977. no. 39: "A more accessible and readable text than Monaci's (1875). A new edition is very much needed, however, to take into account the contributions of critics such as C. Michaelis de Vasconcellos, J. J. Nunes, J. Piel, W. Mettmann and others. Alfonso's poems are numbered 61-79 and appear on pp. 12-17, but B. attributes them to Alfonso IX (d. 1229)."