000 00490nam a22001817a 4500
999 _c114885
_d114884
005 20190531151059.0
041 _aEN
082 _223
_a515.35
_bLEC
245 _aLECTURES in differential equations
260 _aNew York
_bVan Nostrand .Reinhold
_c1969
300 _avi, 199 p.
440 _992608
_aVan Nostrand Mathematical Studies; No.18
500 _aIncludes reference
509 _aNS
650 4 _94811
_aDifferential equations
700 _992544
_aAziz, A.K.
_eedt
942 _cS