Exponential estimates on the one-dimensional Schroedinger equation with bounded analytic potential Giancarlo Benettin; Luigi Chierchia; Francesco Fassò — 1989 Annales de l'I.H.P. Physique théorique
Geometry of invariant tori of certain integrable systems with symmetry and an application to a nonholonomic system. Fassó, Francesco; Giacobbe, Andrea — 2007 SIGMA. Symmetry, Integrability and Geometry: Methods and Applications [electronic only]