@book{42946,
	author = {Mielke, Alexander},
	title = {Hamiltonian and Lagrangian Flows on center Manifolds with Applications to Elliptic Variational Problems: Lecture Notes in Mathematics 1489},
	publisher = {: Springer- Verlag},
	year = {@1991},
	address = {.- New York },
	edition = {.- 1st ed.}
}