1. Theory of Oscillators;Andronov,1966
2. On Axiom A Diffeomorphisms;Bowen,1978
3. Differential Topology with a View to Applications;Chillingworth,1976
4. Iterated Maps on the Interval as Dynamical Systems;Collet,1980
5. Universal Properties of Maps on an Interval;Collet;Comm. Math. Phys.,1980