00520nam a2200181Ia 4500082002000000100002400020245006100044260003400105300002000139490001700159500000500176690000600181700000500187952010200192964001700294921001000311999001700321  a515.35bV515.ND  aVerhulst, Ferdinand  aNonlinear differential equations and dynamical systemsb  aBerlinbSpringer-Verlagc1990  aix, 277p. Index  aUniversitext  a  a   a  00104070aISIbISId1998-09-30l0o515.35 V515.NDpDP21533r2019-02-14 00:00:00w2019-02-14yBK  abcdefg  a14869  c14869d14869