1. Gessow, A. and Myers, G. C., Jr., Aerodynamics of the Helicopter, the Macmillan Company, New York, 1952.
2. Bramwell, A.R.S., Helicopter Dynamics, John Wiley & Sons, New York, 1976.
3. Loewy, R.G., “Review of Rotary Wing V/STOL Dynamics and Aeroelastic Problems”, Journal of Amerian Helicopter Society, Vol. 14, No. 3 (July 1969).
4. Friedmann, P., “Recent Developments in Rotary Wing Aeroelasticity”, Paper No. 11, Second European Rotorcraft and Powered Lift Aircraft Forum (September 20–22, 1977).
5. Hohenemser, K.H., “Hingeless Rotorcraft Flight Dynamics”, Agardograph 197, 1974.