000 00292nam a2200121Ia 4500
008 230321s9999 xx 000 0 und d
082 _bKUM
100 _aKumar, R.
245 0 _aMathematics Series Differential Equations
260 _bVardhman Publication
_c2013
300 _a308
942 _cBD
999 _c6263
_d6263