1. Flapping response of lifting rotor blades to atmospheric turbulence;Gaonkar;Journal of Aircraft,1969
2. Stochastic properties of turbulence existed-rotor blade vibrations;Gaonkar;American Institute of Aeronautics and Astronautics Journal,1971
3. Flying qualities of piloted V/STOL aircraft;Military Specification;MIL-F-83300,1970
4. Helicopter flying and ground handling qualities;Military Specification;MIL-H-8501A (Amendment),1962
5. Research on helicopter rotors;Hohenemser,1969