@book{13217,
	author = {Chow, Shui-Nee and Hale, Jack K. and Hale, Jack K. ; jt. auth.},
	title = {Methods of bifurcation theory},
	publisher = {Springer-Verlag},
	year = {1982},
	series = {Die Grundlehren der Mathematischen Wissenschaften},
	address = {New York}
}