Perko, Lawrence. Differential equations and dynamical systems / Lawrence Perko. - 3rd ed. - New York : Springer, 2001. - xiv, 553 p. : ill. ; 25 cm. - Texts in applied mathematics ; 7 . Includes bibliographical references (p. [539]-545 and index. ISBN: 0387951164 (hbk.) RM268.60 LCCN: 00-058305 Subjects--Topical Terms: Differential equations, Nonlinear.Differentiable dynamical systems.