1. Smooth stabilization implies coprime factorization;Sontag;IEEE Trans. Aut. Cont.,1989
2. Remarks on stabilization and input-to-state stability;Sontag;IEEE Conf. Decision and Control,1989
3. Further facts about input to state stabilization;Sontag;IEEE Trans. Aut. Cont,1990
4. On the input-to-state stability property;Sontag;European J. Cont.,1995
5. Stabilization with relaxed controls;Artstein;Nonlinear Anal. TMA,1983