1. Foundations of Mechanics;Abraham,1985
2. Geometrical Methods in the Theory of Ordinary Differential Equations;Arnold,1988
3. Problèmes ergodiques de la Mécanique classique;Arnold,1967
4. Solution of the Schrödinger equation in terms of classical paths
5. M. V. Berry, in Topics in Nonlinear Dynamics—A Tribute to Sir Edward Bullard (J. Siebe, Ed.), Vol. 46, pp. 16–120; reprint, in “Hamiltonian Dynamical Systems,” Hilger, Bristol, 1987.