00791nam0-22002651i-450-99000083152040332120001010000083152FED01000083152(Aleph)000083152FED0100008315220001010d--------km-y0itay50------baitay-------001yyProblems de la theorie asymptotique des oscillations non stationnairesParisGauthier-VillarsMitropolskii,Iurii Alekseevich<1917- >26235ITUNINARICAUNIMARCBK99000083152040332102 65 C 3302FINBNFINBNProblems de la theorie asymptotique des oscillations non stationnaires348266UNINAING01