@book{82847,
	author = {Levinson, Norman, and Redheffer, Raymond M.,},
	title = {Curso de variable compleja /},
	publisher = {Editorial Reverté,},
	year = {[1990]},
	address = {Barcelona :},
	url = {https://login.zproxy.cun.edu.co/login?url=https://www.digitaliapublishing.com/a/67938/}
}