Arnold, V. I. Geometrical methods in the theory of ordinary differential equations / V.I. Arnold ; translated by Joseph Szucs ; English translation edited by Mark Levi. - New York : Springer-Verlag, 1988. - xii, 351 p. : ISBN: 0387966498 Subjects--Topical Terms: Differential equations. Dewey Class. No.: 515.35 / Ge,2