D. Anosov/Vladimir Arnold (ed.): Dynamical systems I.
Springer 1988, 250p. DM 128. A very good introduction to topological
aspects of ordinary differential equations.

A. Bruno: Local methods in nonlinear differential equations.
Springer 1989, 350p. DM 188.

Klaus Deimling: Nonlinear functional analysis. Springer 1985.

L. Carleson/T. Gamelin: Complex dynamics. 
Springer 1993, 190p. 3-540-97942-5. DM 50.

23754 Robert Conte: The Painleve' approach to nonlineare ordinary differential
equations. Internet 1997, 110p.

D. Jordan/P. Smith: Non-linear ordinary differential equations.
Oxford UP 1987.

P. Lochak/C. Meunier: Multiphase averaging for classical systesm, with
applications to adiabatic theorems. Springer 1988, 360p. DM 78.

854 Maria Grazia Mondini: Sistemi dinamici ed equazioni differenziali
ordinarie. Tesi, Ferrara 1988.

L. Perko: Differential equations and dynamical systems.
Springer 1993, 410p. 3-540-97443-1. DM 81.

Patrizia Pucci/James Serrin: Precise damping conditions for global asymptotic
stability for nonlinear second order systems. Acta Math. 170 (1993), 275-307. 

E. Reithmeier: Periodic solutions of nonlinear dynamical systems.
SLN Math. 1483 (1991).

Jesus Rodriguez: Galerkin's method for ordinary differential equations
subject to generalized nonlinear boundary conditions.
J. Diff. Eq. 97 (1992), 112-126.

4031 Jan Sanders/F. Verhulst: Averaging methods in nonlinear dynamical
systems. Springer 1985.

22063 Klaus Schmitt/Russell Thompson: Nonlinear analysis and
differential equations. Internet 2004, 160p.

977 George Sell: Topological dynamics and ordinary differential equations.
Van Nostrand 1971.

2686 Ferdinand Verhulst: Nonlinear differential equations and
dynamical systems. Springer 1990.

James Ward: A topological method for bounded solutions of nonautonomous
ordinary differential equations. Trans. AMS 333 (1992), 709-720.
This very interesting paper deals with the existence of a bounded solution
to nonhomogeneous nonlinear systems of ordinary differential equations 
via boundary value problems. The author applies a Conley index associated
with the autonomous differential equation. Strong theorems and nontrivial
examples.