@book{41412,
	author = {Walter, Robert, and aVillar Borda, Luis,},
	title = {La doctrina del derecho de Hans Kelsen /},
	publisher = {Universidad Externado de Colombia,},
	year = {[1999]},
	series = {Serie de teoría jurídica y filosofía del derecho ;},
	address = {Bogotá :},
	edition = {Primera edición.},
	url = {https://login.zproxy.cun.edu.co/login?url=https://www.digitaliapublishing.com/a/39918/}
}