1. Variable structure control: a survey
2. Zinober, A.S.I.: ‘Variable structure and Lyapunov control’, (Springer Verlag, Berlin 1994)
3. Ioannou, P.A., and Sun, J.: ‘Robust adaptive control’, (Prentice-Hall, NJ 1996)
4. Krsti, M., Kanellakopoulos, I., and Kokotovi, P.V.: ‘Nonlinear and adaptive control design’, (Wiley, New York 1995)
5. Marino, R., and Tomei, P.: ‘Nonlinear control design: geometric, adaptive and robust’, (Prentice-Hall, Englewood Cliffs, NJ 1995)