M.  Zoncu, Balluchi, A., Vincentelli, S. A., and Bicchi, A., ?Stabilization of a class of discrete-time hybrid automata?, in Proc. IEEE Int. Conf. on Decision and Control, 2003, pp. 1147-1152. 

A.  Balluchi, Bicchi, A., Piccoli, B., and Souères, P., ?Stability and Robustness of Optimal Synthesis for Route Tracking by Dubins' Vehicles?, in Proc. 39th IEEE Conference on Decision and Control, Sydney, Australia, 2000, vol. 1, pp. 581-6.