Contents of Volume 5, Number 3/4 July/October 1997

Editorial
V. SREE HARI RAO Series
Pages 197 - 198

Editorial
R.E. KOOIJ AND A.H.P. VAN DER BURGH
Pages 199 - 200

CONFERENCE PARTICIPANTS
Pages 201 - 202

Periodic Orbits of Coupled Oscillators Near Resonance
CARMEN CHICONE
Pages 203 - 228

Bifurcation Properties of a Planar System Modelling Neural Activity
FOTIOS GIANNAKOPOULOS AND OLIVER OSTER
Pages 229 - 242

Weak Critical Points and Limit Cycles in Quadratic Systems with Finite Multiplicity Three
XIANHUA HUANG AND J.W. REYN
Pages 243 - 266

Coexistence of Saddle-node and Poincaré-Andronov-Hopf Bifurcations
VIKTOR KERTÉSZ
Pages 267 - 288

Two-Dimensional Quadratic Sysems as a Liénard Equation
G.A. LEONOV
Pages 289 - 298

The Centre Conditions for a Certain Cubic System
L. A. CHERKAS, V. G. ROMANOVSKII AND H. ZOSADEK
Pages 299 - 302

On the Number of Limit Cycles Arising From Perturbations of Homoclinic Loops of Quadratic Integrable Systems
YUE HE AND CHENGZHI LI
Pages 303 - 316

On the Invariant Straight Lines of Polynomial Differential Systems
JOAN C. ARTÉS, BRANKO GRÜNBAUM AND JAUME LLIBRE
Pages 317 - 328

Quadratic-like Cubic Systems
N.G. LLOYD, C.J. CHRISTOPHER, J. DEVLIN, J.M. PEARSON, N. YASMIN
Pages 329 - 346

The Integration of Polynomial Liénard Systems by Elementary Functions
KENZI ODANI
Pages 347 - 354

Phase Portraits of Non-Degenerate Quadratic Systems with Finite Multiplicity Two
J.W. REYN AND R.E. KOOIJ
Pages 355 - 414

Structurally Stable Differential Systems of the form A(x)x'=F(x)
JORGE SOTOMAYOR
Pages 415 - 422

Limit Cycles and Bifurcation from a Separatrix for a Polynomial Liénard System in the Plane
GAB. VILLARI AND M. VILLARINI
Pages 423 - 438

Algebraic Criteria for the Existence of Analytic First Integrals
M. VILLARINI
Pages 439 - 454

Total Multiplicity of all Finite Critical Points of the Polynomial Differential System
V.A. BALTAG AND N.I. VULPE
Pages 455 - 472

AUTHOR INDEX FOR VOLUME 5
Pages 473 - 474

CONTENTS OF VOLUME 5
Pages 475