@book{229963,
	author = {Keefer, Alice, and Gallart, Núria,},
	title = {La preservación de recursos digitales :},
	publisher = {Universitat Oberta de Catalunya,},
	year = {2007.},
	series = {Manuales ;},
	address = {Barcelona :},
	edition = {Primera edición en lengua castellana. },
	url = {https://www.digitaliapublishing.com/a/1039/}
}