@book{6661,
	author = {Iooss, Gérard. and Joseph, Daniel D.},
	title = {Elementary stability and bifurcation theory /},
	publisher = {Springer-Verlag,},
	year = {c1990.},
	address = {New York :},
	edition = {2nd ed.},
	note = {includes index},
	url = {http://www.loc.gov/catdir/enhancements/fy0814/89021765-d.html}
}