LEADER 00937nam0-22003251i-450 001 990000851110403321 005 20200211153600.0 010 $a3-7643-1664-8 035 $a000085111 035 $aFED01000085111 035 $a(Aleph)000085111FED01 035 $a000085111 100 $a20001010d1985----km-y0itay50------ba 101 0 $aeng 102 $aCH 105 $ay-------001yy 200 1 $aAnalytic perturbation theory for matrices and operators$fH. Baumgartel 210 $aBasel$cBirkhauser Verlag$d1985 215 $a427 p.$d24 cm 225 1 $aOperator theory, advances and applications$v15 676 $a515.724 700 1$aBaumgärtel,$bHellmut$0348144 801 0$aIT$bUNINA$gRICA$2UNIMARC 901 $aBK 912 $a990000851110403321 952 $a02 28 D 29$b4968$fFINBN 959 $aFINBN 996 $aAnalytic Perturbation Theory for Matrices and Operators$9348474 997 $aUNINA DB $aING01