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101 0 $aeng
200 1 $a<<On >>spectral theory of elliptic operators$fYuri Egorov, Vladimir Kondratiev
210   $aBasel$cBirkhauser$dc1996
215   $avii, 328 p.$d25 cm
225 1 $aOperator theory, advances and applications$v88
610 0 $aTeoria spettrale
610 0 $aEquazioni differenziali ellittiche
676   $a515.7248
700  1$aEgorov,$bYuri$0351110
702  1$aKondratiev,$bVladimir
801  0$aIT$bUNINA$gRICA$2UNIMARC
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996   $aSpectral theory of elliptic operators$9374755
997   $aUNINA