Dynamical systems and small divisors lectures given - Marmi S ed.; C.I.M.E. Summer School on Dynamical Systems and Small Divisors (13-20 Jun 1998 : Cetraro,Itally); C.I.M.E. summer school on dynamical systems and divisors Cetraro, Italy 13-20 Jun 1998 (Berlin Springer-Verlag, 2002)
Keywords: Dynamical systems