00320nam a22001097a 4500100001800000245006300018260001700081300000800098942000700106999001700113952008000130  aGrabirnuller   aingular Perturbation Techniques to Differential Equations   aLondonc1984  a246  cBK  c13682d13682  00104070aSLMSbSLMSd2015-08-10g0.00l0p10465r2015-08-10 00:00:00yBK