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100   $a20020821d1991----km-y0itay50------ba
101 0 $aeng
105   $ay-------001yy
200 1 $aAlgebraic methods in nonlinear perturbation theory$fV. N. Bogaevski, A. Povzner
210   $aNew York$cSpringer-Verlag$d1991
215   $aXII, 65 p. 17 ill.$d24 cm
225 1 $aApplied mathematical sciences$v88
676   $a515.35
700  1$aBogaevski,$bVladimir Nikolaevich$0350414
801  0$aIT$bUNINA$gRICA$2UNIMARC
901   $aBK
912   $a990000836760403321
952   $a02 60 D 11$b6172$fFINBN
959   $aFINBN
996   $aAlgebraic methods in nonlinear perturbation theory$9347870
997   $aUNINA