@book{34635,
	author = {Berceo, Gonzalo de, and Berceo, Gonzalo de,},
	title = {Obras /},
	publisher = {Ediciones la Biblioteca Digital,},
	year = {[2012?]},
	address = {[Paris?] :},
	url = {https://login.zproxy.cun.edu.co/login?url=https://www.digitaliapublishing.com/a/26211}
}