000 00328nam a22001457a 4500
999 _c114813
_d114812
005 20190529120929.0
041 _aEN
082 _223
_a515.35
_bBAT
100 _aBatchelder Paul M.
245 _aAn Introduction to linear
300 _avii, 209 pages.
509 _aNS
650 4 _94809
_aDifferential equation
942 _cS