00470nam a2200157Ia 4500008004100000020001800041041000800059082001800067100002100085245010700106250001200213260004100225300000900266650001600275650002100291060110s9999    xx            000 0 und d  a9788126521555  aeng  a515.35bBOY/E  aBOYCE, William E  aElementary differential equations and boundary value problemscWilliam E. Boyce and Richard C. Diprima  a9th Ed.  bJohn Wiley and Sonsc2009aNew Delhi  a796p  aMATHEMATICS  aLINEAR EQUATIONS