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100   $a--------d--------km-y0itay50------ba
101 0 $aeng
200 1 $a<<An >>introduction to nonharmonic Fourier series$fby Young
210   $aNew York [etc.]$cAcademic Press$d1980
225 1 $aPure and applied mathematics$v93
700  1$aYoung,$bRobert M.$055275
801  0$aIT$bUNINA$gRICA$2UNIMARC
901   $aBK
912   $a990001156600403321
952   $aC-27-(93$b1041$fMA1
959   $aMA1
996   $aIntroduction to nonharmonic Fourier series$9346869
997   $aUNINA