@Book{BVMC:759042, author = {Calderón de la Barca, Pedro}, title = {Sueños hay, que verdades son}, publisher = {Santander : Ayuntamiento ; Alicante : Biblioteca Virtual Miguel de Cervantes, 2017 }, year = {2017}, url = {https://www.cervantesvirtual.com/nd/ark:/59851/bmc1g2p4} }