@book{1234,
	author = {Bertsimas, Dimitris and Tsitsiklis, John N.},
	title = {Introduction to linear optimization},
	publisher = {Athena Scientific, Dynamic Ideas,},
	year = {1997},
	address = {Massachusetts, USA :},
	url = {https://itmsp.museknowledge.com/UOH?qurl=https://libros-uoh.uoh.cl/ESCUELADEINGENIERIA/PLANCOMUNDEINGENIERIA/Introduction-to-Linear-Optimization/}
}