@book{2011,
	author = {Arnolʹd, V.I.},
	title = {Ordinary differential equations /},
	publisher = {Springer,},
	year = {2006.},
	series = {Universitext. },
	address = {Berlin ;},
	edition = {1st ed., 2nd printing.},
	note = {Translation of: Obyknovennye differentsialʹnye uravneniya. 3rd ed.}
}