00330nam a2200121 a 450000500170000002000180001708200240003510000200005924500520007926000290013130000290016050000190018920251203112029.0 a9788184894707 a515.3502855369bBET aBetounes, David aDifferential equationsbtheory and applications aNew YorkbSpringerc2010 axiv,680p.c24cm.bPBeCD aincludes index