@Misc{BVMC:261250, author = {Calderón de la Barca, Pedro}, title = {Los empeños de un acaso}, publisher = {Alicante : Biblioteca Virtual Miguel de Cervantes ; Madrid : Biblioteca Nacional, 2009}, year = {2009}, url = {https://www.cervantesvirtual.com/nd/ark:/59851/bmcgj008} }