@Book{BVMC:242335, author = {Alfonso X, Rey de Castilla}, title = {Cantigas de Santa MarĂ­a}, publisher = {Alicante : Biblioteca Virtual Miguel de Cervantes ; Madrid : Biblioteca Nacional, 2009}, year = {2009}, url = {https://www.cervantesvirtual.com/obra/cantigas-de-santa-maria} }