1. Mathermatical Methods of Classical Mechanics;Arnold,1978
2. Instability of dynamical systems with many degrees of freedom;Arnold;Sov. Math. Dokl.,1964
3. The global geometry of the slow manifold in the Lorenz-Krishnamurthy model;Camassa,1993
4. Applications of Center Manifold Theory;Carr,1981
5. Theory of Ordinary Differential Equations;Coddington,1955