1. Feedback Instruments Ltd. Twin Rotor MIMO System Control Experiments 33-949S Laboratory Manual, U.K.; 2005.
2. Martinez ML, Viva C, Ortega MG. A multivariable nonlinear H∞ controller for a laboratory helicopter. In: Proceedings of the 44th IEEE Conference on Decision and Control; 2005. p. 4065–4070.
3. Nonlinear L2 control of a laboratory helicopter with variable speed rotors;Martinez;Automatica,2007
4. Evaluating H∞ controllers on the NRC Bell 205 fly-by-wire helicopter;Smerlas;Control Eng Pract,2001
5. Nonlinear modelling and control of helicopters;Vilchis;Automatica,2003