@book{92017,
	author = {Calle, Carlos I.,},
	title = {Superstrings and other things :},
	publisher = {CRC Press,},
	year = {2020.},
	address = {Boca Raton :},
	edition = {Third edition.},
	url = {https://www.taylorfrancis.com/books/9780429431029}
}