MSS / layout
Rodrigues Lapa, Manuel
Da versificação medieval
Miscelânea de língua e literatura portuguesa medieval (Rio de Janeiro: Inst. Nacional do Livro, 1965), 198-201. 2nd ed. acrescentada, Coimbra: Univ., 1982.
Snow 1977, revised 2007: "The entire book deals with matters tangential to Alfonso X as poet and these specific pages berate Mussafia (1895) for his forced interpretations of metrics affecting many of the CSM."