1. On invariant curves of area-preserving mappings of an annulus;Moser;Nachr. Akad. Wiss. Göttingen Math.-Phys. Kl. II,1962
2. Stable and random motions in dynamical systems;Moser,1973
3. Lectures on Celestial Mechanics;Siegel,1971
4. A C1 counterexample to Moser’s twist theorem, in: Nederl. Akad. Wetensch. Proc. Ser. A 74;Takens;Indag. Math.,1971
5. Sur les courbes invariantes par les difféomorphismes de l’anneau;Herman;Astérisque,1983