Sanjay P. Bhat, Raghvendra V. Cowlagi. Semi-global Practical Stability of Periodic Time-Varying Systems via Averaging: A Lyapunov Approach. In 45th IEEE Conference on Decision and Control, CDC 2006, San Diego, CA, USA, 13-15 December, 2006. pages 361-365, IEEE, 2006. [doi]
Abstract is missing.