@Misc{BVMC:706796, author = {Bécquer, Gustavo Adolfo}, title = {XIII - Tu pupila es azul y cuando ríes}, publisher = {Alicante : Biblioteca Virtual Miguel de Cervantes, 2015}, year = {2015}, url = {https://www.cervantesvirtual.com/nd/ark:/59851/bmc350h0} }