@book{48042,
	author = {Lenz, Siegfried, and Calabuig, Ernesto,},
	title = {Lección de alemán /},
	publisher = {Impedimenta,},
	year = {[2016]},
	address = {Madrid :},
	edition = {Primera edición digital en Impedimenta.},
	url = {https://login.zproxy.cun.edu.co/login?url=https://www.digitaliapublishing.com/a/50517/}
}