00327nam a2200133Ia 4500008004100000041001200041082001600053100001600069245002700085260003700112300000800149650001900157700001700176221030s9999    xx            000 0 und d  aEnglish  a105.23bGup  aR. K. Gupta 0aDifferential Equations  bKrishana PrakashanaMeerutc2000  a580  aBE Mathematics  aJ. N. Sharma