@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}
}