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001 990001301250403321
035   $a000130125
035   $aFED01000130125
035   $a(Aleph)000130125FED01
035   $a000130125
100   $a20000920d1975----km-y0itay50------ba
101  1$aeng
200 1 $aIntroduction to spectral theory$eselfadjoint ordinary differential operators.$fby LEVITAN B.M. and SARGSJAN I.S.
210   $aProvidence (RI)$cAmerican Mathematical Society$d1975
225 1 $aTranslations of mathematical monographs$v39
700  1$aLevitan,$bB.M.$048792
702  1$aSargsjan,$bIshkhan Saribekovich
801  0$aIT$bUNINA$gRICA$2UNIMARC
901   $aBK
912   $a990001301250403321
952   $aC-29-(39$b19966$fMA1
959   $aMA1
996   $aIntroduction to spectral theory$9188834
997   $aUNINA
DB    $aING01