00553nam a2200181Ia 4500082002000000100002500020245005800045260003600103300002700139490004300166500000500209690000600214700000500220952010200225964001700327921001000344999001700354  a515.35bR359.ST  aReid, William Thomas  aSturmian theory for ordinary differential equationsb  aNew YorkbSpringer-Verlagc1980  axv, 559p. Index, Bibl.  aApplied Mathematical Sciences v v. 31  a  a   a  00104070aISIbISId1998-09-28l0o515.35 R359.STpDP17351r2019-02-14 00:00:00w2019-02-14yBK  abcdefg  a14390  c14390d14390