@Misc{BVMC:280353, author = {Ballesteros Beretta, Antonio}, title = {Itinerario de Alfonso X, rey de Castilla. [1264] [7]}, publisher = {Alicante : Biblioteca Virtual Miguel de Cervantes, 2011}, year = {2011}, url = {https://www.cervantesvirtual.com/nd/ark:/59851/bmcj39b2} }