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4. 4) Johnson, W.: Technology Drivers in the Development of CAMRAD II, American Helicopter Society Aeromechanics Specialists Conference, San Francisco, California, January 19-21, 1994, PS.3-1.
5. 5) Etkin, B. and Reid, L. D.: Dynamics of Flight Stability and Control, John Wiley and Sons Inc., Toronto, 1995, Chapter 4, pp. 97-102.