@book{90205,
	author = {Smith, James H. and Ortiz Fornaguera, Ramón,},
	title = {Introducción a la relatividad especial /},
	publisher = {Editorial Reverté,},
	year = {[2021]},
	address = {Barcelona :},
	note = {Includes index.},
	url = {https://login.zproxy.cun.edu.co/login?url=https://www.digitaliapublishing.com/a/103407/}
}