00398nam a2200157Ia 4500008004100000020001800041082001500059100002200074245002700096260001400123260002800137260000900165300001100174650001600185650003900201221231s9999    xx            000 0 und d  a0-07-099006-9  a515.35 AYR  aAyres, Frank J.R. 0aDifferential Equations  aSingapore  bSchaum's Outline Series  c1987  a298 p.  aMathematics  bDifferential,Equations,Mathematics