1. Twin Rotor MIMO System, Advanced Teaching Manual 1, Feedback Instruments Ltd, UK (2000).
2. , and , “Modelling control of a twin rotor multi-input multi-output system,” Proc. Amer. Contr. Conf. pp. 1720–1724 (2000).
3. , and , “Dynamic modelling of a twin rotor system in hovering position,” IEEE Int. Conf. Contr. Commun. Signal Process. pp. 823–826 (2004).
4. and , “Stability analysis controller design of a twin rotor MIMO system using a fuzzy Lyapunov variable structure approach,” Proc. IEEE Int. Conf. Syst. Signals pp. 831–836 (2005).
5. PID type fuzzy controller and parameters adaptive method