000 00254nam a2200109Ia 4500
008 170912s9999 xx 000 0 und d
082 _a515.35 SHA/D GUP/D
100 _aGUPTA P K
100 _aSHARMA JN
245 0 _aDIFFERENTIAL EQUATIONS
942 _cTB
999 _c35848
_d35848