1. Ordinary Differential Equations;Hartman,1964
2. Neighborhood of hyperbolic sets;Hirsch;Invent. Math.,1970
3. Stable manifolds and hyperbolic sets;Hirsch,1970
4. Invariant manifolds;Hirsch;Bull. Am. math. Soc.,1970
5. Non-density of axiom A(a) on S2;Newhouse,1970