00395cam a2200109 a 4500020002100000082001600021100002200037245004800059260003400107300002800141650011600169  a9067643939 (pbk)00a515.35bSAM1 aSamoilenko, A. M.10aCountable systems of differential equations  aUtrechtbVSP Publishersc2003  aviii, 287 p. c; 25 cm. 0aDifferential equationsaMathematicsvLinear systemsvPeriodic solutionvPeriodic systemvImpulsive systemvMath