1. Cheng, D., T. Tarn, and A. Isidori, 1985, “Global Feedback Linearization of Nonlinear Systems,” IEEE Trans. Automat. Contd., 30, 808–811.
2. Dayawansa, W., D. Elliot, and W. M. Boothby, 1985, “Global Linearization by Feedback and State Transformation,” Poc. 25th IFFE Conf. Decision and Control, Ft. Lauderdale, FL, Dec. 11–13.
3. Hunt, L. and R. Su, 1981, “Local Transformations for Multi-Input Nonlinear Systems,” Proc. Joint Automatic Control Prof., Charlottesville, VA.
4. Jakubczyk, B. and W. Respondek, 1980, “On the Linearization of Control Systems,” Bull. Acad. Polon. Sci. Set. Math. Astron. Physics’, 28, 517–522.
5. Krener, A. J., 1973, “On 1he Equivalence of Control Systems and the inearization of Nonlinear Systems,” SIAM J. Control, 11, 670–676.