@book{90223,
	author = {Levich, B. G., and Ortiz Fornaguera, Ramón,},
	title = {Curso de física teórica.},
	publisher = {Editorial Reverté,},
	year = {[2021]},
	address = {Barcelona :},
	note = {Includes index.},
	url = {https://login.zproxy.cun.edu.co/login?url=https://www.digitaliapublishing.com/a/103425/}
}