1. Geometrical Methods in the Theory of Ordinary Differential Equations;Arnold,1987
2. On the stabilization of non-holonomic systems;Astolfi,1994
3. A unifying approach to the asymptotic stabilization of nonholonomic systems via discontinuous feedback;Astolfi;Submitted to Systems and Control Letters,1994
4. Exponential stabilization of a car-like vehicle;Astolfi,1995
5. Controllability and stabilizability properties of a nonholonomic control system;Bloch,1990