00380nam a2200133Ia 4500008004100000020001500041041001200056082001600068100001400084245008700098260003400185300000800219650001900227221030s9999    xx            000 0 und d  a0070990069  aEnglish  a105.23bAyr  a(PR) Arya 0aSchaum`s Outline of Theory & Problems of Differential Equations (PR)cby (PR) Arya  bMcGraw-Hill Pub.aDelhic1972  a295  aBE Mathematics