@book{7907,
	author = {Jordan, D. W. and Smith, Peter,},
	title = {Nonlinear ordinary differential equations :},
	publisher = {Oxford University Press,},
	year = {2007.},
	series = {Oxford applied and engineering mathematics},
	address = {Oxford :},
	edition = {4th ed.},
	note = {Previous ed.: 1999.}
}