[Reports] / Amer.inst.of aeronautics and astronautics. N 90-4011 : Evaluation of an analytical model of discrete frequency sound in closed-test-section wind tunnels : Rep.presented at AIAA 13th aeroacoustics conf.,Oct.22-24,1990,Tallahassee,Fl / M.Mosher, 1990. - 15 p. - Текст : непосредственный.