000 00281nam a2200109Ia 4500
008 190719s9999 xx 000 0 und d
100 _aEarl A Coddington
245 0 _aIntroduction to ordinary differential equations
260 _aNew Delhi
_bPHI
_c1998
650 _aMath
942 _cBK
999 _c9893
_d9893