1. Khalil, H.: Nonlinear Systems. Prentice Hall, Upper Saddle River (2002)
2. Krstic, M., Kanellakopoulos, I., Kokotovic, P.: Nonlinear and Adaptive Control Design. Wiley, New York (1995)
3. Marino, R., Tomei, P.: Nonlinear Control Design: Geometric, Adaptive and Robust. Prentice Hall, London (1995)
4. Qian, C., Lin, W.: Output feedback control of a class of nonlinear systems: a nonseparation principle paradigm. IEEE Trans. Autom. Control 47(10), 1710–1715 (2015)
5. Qian, C.: A homogeneous domination approach for global output feedback stabilization of a class of nonlinear systems. In: Proceedings of the IEEE American Control Conference, pp. 4708–4715 (2005)