Gert Lehmann

Initial results of a model rotor higher harmonic control (HHC) wind tunnel experiment on BVI impulsive noise reduction

Berend G. van der Wall, W. R. Splettstößer, Gert Lehmann, 1989 .

Higher Harmonic Control of a Helicopter Model Rotor to Reduce Blade/Vortex Interaction Noise

Berend G. van der Wall, W. R. Splettstößer, Gert Lehmann, 1990 .