LEADER 00635nam0-22002291i-450- 001 990001304810403321 035 $a000130481 035 $aFED01000130481 035 $a(Aleph)000130481FED01 035 $a000130481 100 $a20000920d--------km-y0itay50------ba 101 1 $aeng 200 1 $aSingular-perturbation theory$eAn introduction with applications$fby SMITH D.R. 700 1$aSmith,$bDonald R.$041261 801 0$aIT$bUNINA$gRICA$2UNIMARC 901 $aBK 912 $a990001304810403321 952 $a121-E-19$b7210$fMA1 959 $aMA1 996 $aSingular-perturbation theory$9383260 997 $aUNINA DB $aING01