[Reports] / Amer.inst.of aeronautics and astronautics. N 90-3980 : screech of round choked jets,revisited / A.Powell,Y.Ishii;Rep.presented at AIAA 13th aerocoustics conf.Oct.22-24,1990,Tallahassee(Fl), 1990. - 4 p. - Текст : непосредственный.
[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.
Working paper / International monetary fund. WP/04/66 : Prudential responses to de facto dollarization / A.Ize,A.Powell, 2004. - 41 p. - Текст : непосредственный.
Use of Satellite and In-Situ Data to Improve Sustainability : монография / edited by Felix Kogan, Alfred Powell, Oleg Fedorov., 2011 r=on-line (Введено оглавление). - Текст : электронный.