@book{86201,
	author = {Martínez García, Óscar J.,},
	title = {Umbrales :},
	publisher = {Siruela,},
	year = {[2021]},
	series = {Biblioteca de Ensayo ;},
	address = {Madrid :},
	edition = {Edición en formato digital.},
	url = {https://login.zproxy.cun.edu.co/login?url=https://www.digitaliapublishing.com/a/81707/}
}