[Reports] / Amer.inst.of aeronautics and astronautics. N 90-3948 : Experiments on the aerodynamic noise sources in centrifugal turbomachinery : Rep. presented at the AIAA 13th aeroacoustics conf.,Oct.22-24,1990,Tallahassee(Fl) / J.-S.Choi,D.K.McLaughlin,D.E.Thompson, 1990. - 7 p. - Текст : непосредственный.