@book{93139,
	author = {Alexander, Roman,},
	title = {Amazon Echo y Alexa :},
	publisher = {Ra-Ma,},
	year = {[2019]},
	address = {Paracuellos de Jarama, Madrid :},
	url = {https://login.zproxy.cun.edu.co/login?url=https://www.digitaliapublishing.com/a/110153/}
}