00359nam a2200133Ia 4500008004100000041001200041082001600053100001600069245005700085260003900142300000800181650001900189700001700208221030s9999    xx            000 0 und d  aEnglish  a105.23bGup  aR. K. Gupta 0aDifferential Equationscby R. K. Gupta, J. N. Sharma  bKrishna PrakashanaNew Delhic2001  a580  aBE Mathematics  aJ. N. Sharma