Contents:

• Estimation of Distributed Individual Rates from Aggregate Population Data (H T Banks et al.)
• Mathematical Models for Drug Administration from Aggregate Population Data (E Beretta & A Fasano)
• A Characteristic Equation Arising in Models for Diseases with Vertical Transmission and without Immunity (F Brauer)
• On Periodic Orbits of Autonomous Differential-Difference Equations (L A V Carvalho & L A C Ladeira)
• High Complexity of Spatial Patterns in Gradient Reaction-Diffusion Systems (S N Chow et al.)
• General Bifurcation Theory: Local Results and Applications (M Furi et al.)
• Travelling Epidemic Waves and Correlated Random Walks (K P Hadeler)
• Hopf Bifurcation Analysis for Hybrid Systems (J K Hale & W Huang)
• Asymptotic Stability Conditions for a Linear Nonautonomous Delay Differential Equation (L Hatvani)
• Understanding Compartmental Systems with Lags (J A Jacquez & C P Simon)
• Kinetic Model for the Interleukin-4 (IL-4)Binding to High Affinity IL-4 Receptor and Their Internalization (V A Kuznetsov & L R Borisova)
• Global Behavior in Age Structured SIS Models with Seasonal Periodicities (M Langlais & S Busenberg)
• Stability and Oscillation in Monotone Cyclic Systems of Differential Equations (J Mallet-Paret)
• A Symmetry Principle and Lower Bounds for the Period of Closed Orbits (J Mawhin)
• Parameter Studies for an Analog Model of Bursting Electrical Activity (R M Miura et al.)
• Electromagnetic Field Computation in Multiport Microstrip Structure (J Sarvas)
• Competition in an Unstirred Multi-Dimensional Chemostat (H L Smith & P Waltman)
• Some Epidemiological Models with Delays (P van den Driessche)
• The Regulation of an Age-Structured Population by a Fatal Disease with or without Dispersion (G C Wake et al.)
• and other papers