@book{52287,
	author = {Casasses, Enric, and Acebrón Ruiz, Julián,},
	title = {21 tesis :},
	publisher = {Edicions de la Universitat de Lleida,},
	year = {2022.},
	address = {Lleida :},
	url = {https://login.zproxy.cun.edu.co/login?url=https://elibro.net/ereader/bibliocun/212733}
}