LEADER 01093nam--2200349---4500 001 990003218290203316 005 20090416090111.0 035 $a000321829 035 $aUSA01000321829 035 $a(ALEPH)000321829USA01 035 $a000321829 100 $a20090415d1976----km-y0ENGy0103----ba 101 $aeng 102 $aNL 105 $a||||||||001yy 200 1 $aSingularly perturbed differential operators of second order$fP. P. N. De Groen 210 $aAmsterdam$cMathematisch Centrum$d1976 215 $aIX, 159 P.$cill.$d24 cm 225 2 $aMathematical Centre Tracts$v68 410 0$12001$aMathematical Centre Tracts 606 0 $aOperatori differenziali$2BNCF 676 $a515.7242 700 1$aDE GROEN,$bP.P.N.$0603588 801 0$aIT$bsalbc$gISBD 912 $a990003218290203316 951 $a510 MCT 68$b13744/CBS$c510$d00217064 959 $aBK 969 $aSCI 979 $aRSIAV7$b90$c20090415$lUSA01$h1553 979 $aRSIAV7$b90$c20090416$lUSA01$h0901 996 $aSingularly perturbed differential operators of second order$91011423 997 $aUNISA