[Reports] / Amer.inst.of aeronautics and astronautics. N 90-3985 : On the tones of round chocked jets impinging on normal flat plates / A.Powell,B.Henderson;Rep.presented at AIAA 13th aeroacoustics conf.,22-24 Oct.,1990,Tallahassee(Fl), 1990. - 9 p. - Текст : непосредственный.