1. Works on the Foundation of Statistical Physics;Krylov,1979
2. Mathematical Methods of Classical Mechanics;Arnol’d,1989
3. Problèmes ergodiques de la Mécanique Classique;Arnol’d,1967
4. Geodesic Deviation Equation Approach to Chaos
5. S. Tabachnikov, Billiards, Société Mathématique de France, 1995