@book{47849,
	author = {Tello Portillo, Juan Pablo,},
	title = {Introducción a las señales y sistemas /},
	publisher = {Universidad del Norte Editorial,},
	year = {2017.},
	address = {Área metropolitana de Barranquilla (Colombia) :},
	url = {https://login.zproxy.cun.edu.co/login?url=https://www.digitaliapublishing.com/a/49656/}
}