@book{441,
	author = {Elgerd, Olle I.},
	title = {Control systems theory /},
	publisher = {McGraw Hill, },
	year = {c1967},
	series = {McGraw-Hill electrical and electronic engineering series},
	address = {Tokyo :},
	url = {https://www.cicy.mx/sitios/sib/doctoelectronico/446.pdf}
}