@Misc{BVMC:280521, author = {Unamuno, Miguel de}, title = {Unamuno, Miguel de, 20 de octubre de 1907}, publisher = {Alicante : Biblioteca Virtual Miguel de Cervantes, 2011}, year = {2011}, url = {https://www.cervantesvirtual.com/nd/ark:/59851/bmcxp799} }