@Misc{BVMC:1214229, author = {Alvar, Manuel}, title = {Introducción a las "Poesías" de Unamuno}, publisher = {Alicante : Biblioteca Virtual Miguel de Cervantes, 2023}, year = {2023}, url = {https://www.cervantesvirtual.com/nd/ark:/59851/bmc1214229} }