00963nam0-2200313---450-99000881195040332120090223123041.0928350612X000881195FED01000881195(Aleph)000881195FED0100088119520090223d1991----km-y0itay50------baengFRy-------001yyAircraft exterior noise measurement and analysis techniquesH. HellerNeuilly sur SeineAdvisory group for aerospace research and development1991XXI, 174 p.il.l30 cmAGARD flight test techniques serie9Altro tit. in franceseHeller,Hanno504849ITUNINARICAUNIMARCBK990008811950403321Q 221DINPADINPAAircraft exterior noise measurement and analysis techniques807755UNINA