1. and Dynamical Systems I: Ordinary Differential Equations and Smooth Dynamical Systems (Springer-Verlag, Berlin, 1988).
2. and Bifurcation and Chaos in Engineering (Springer-Verlag, London, 1998).
3. The Mathematics of Sonya Kovalevskaya (Springer-Verlag, New York, 1984).
4. 3‐D spatial chaos in the elastica and the spinning top: Kirchhoff analogy
5. Free Rotation of a Rigid Body Studied in the Phase Plane