[Reports] / Amer.inst.of aeronautics and astronautics. N 90-3982 : evaluation of various concepts of reducing supersonic jet noise : Rep.presented at AIAA 13th aeroacoustics conf., Oct.22-24, 1990, Tallahasse(Fl) / K.K.Ahuja,J.P.Manes,K.C.Massey,A.B.Calloway, 1990. - 21 p. - Текст : непосредственный.