@Misc{BVMC:261842, author = {Fernández-Ordóñez, Inés}, title = {Alfonso X el Sabio en la historia del español}, publisher = {Alicante : Biblioteca Virtual Miguel de Cervantes, 2009}, year = {2009}, url = {https://www.cervantesvirtual.com/nd/ark:/59851/bmc5b0k8} }