Hirsch, Smale, Devaney. Differential equations, dynamical systems, and an introduction to chaos (2ed., Elsevier, 2004)(ISBN 0123497035)(432s)_PD_ - download at 4shared. Hirsch, Smale, Devaney. Differential equations, dynamical systems, and an introduction to chaos (2ed., Elsevier, 2004)(ISBN 0123497035)(432s)_PD_ is hosted at free file sharing service 4shared.