1. Important announcement

   Announcement Pages: 365 - 365

2. The Poincare-Bendixson theorem for monotone cyclic feedback systems

   • John Mallet-Paret
   • Hal L. Smith

   OriginalPaper Pages: 367 - 421

3. Oscillatory modes in a nonlinear second-order differential equation with delay

   • U. an der Heiden
   • A. Longtin
   • R. Scholl

   OriginalPaper Pages: 423 - 449

4. Monodromy and nonintegrability in complex Hamiltonian systems

   • Alberto Baider
   • Richard C. Churchill
   • David L. Rod

   OriginalPaper Pages: 451 - 481