@Misc{BVMC:581893, author = {Faulhaber, Charles}, title = {The date of Stanzas 553 and 1450 of the "Libro de buen amor" in Ms. 9589 of the Biblioteca Nacional, Madrid}, publisher = {Alicante : Biblioteca Virtual Miguel de Cervantes, 2013}, year = {2013}, url = {https://www.cervantesvirtual.com/nd/ark:/59851/bmcj9844} }