TY - BOOK AU - Jordan, D. W. AU - Smith, Peter, TI - Nonlinear ordinary differential equations: an introduction to dy namical systems SN - 0198565631 (hbk) U1 - 515.352 21 PY - 1999/// CY - Oxford, New York PB - Oxford University Press KW - Differential equations, Nonlinear N1 - Includes bibliographical references (p. 539-541) and index ER -