00579nam a2200181Ia 4500082002100000100003600021245005500057260003600112300001900148490004300167500000500210690000600215700002900221952010300250964001700353921001000370999001700380  a515.35bSa215.AM  aSanders, J. A. and Verhulst, F.  aAveraging methods in nonlinear dynamical systemsb  aNew YorkbSpringer-Verlagc1985  ax, 247p. Index  aApplied Mathematical Sciences v v. 59  a  a   aVerhulst, F. ; jt. auth.  00104070aISIbISId1998-09-28l0o515.35 Sa215.AMpDP20533r2019-02-14 00:00:00w2019-02-14yBK  abcdefg  a14464  c14464d14464