[Reports] / Amer.inst.of aeronautics and astronautics. N 89-1047 : In-flight experiments on the active control of propeller-induced cabin noise : Rep. presented at the AIAA 12th aeroacoustics conf.,Apr.10-12,1989, San Antonio(Tx) / S.Elliott,P.Nelson,I.Stothers и др, 1989. - 5 p. - Текст : непосредственный.