Issue no. 1 Table of Contents

A variational model for equilibrium problems in a traffic network
p. 3-12
Heuristic and metaheuristic methods for computing graph treewidth
p. 13-26
Subharmonic solutions of a nonconvex noncoercive hamiltonian system
p. 27-37
Une nouvelle transformation des réseaux de Petri généralisés : l'abstraction généralisée
p. 39-62
Une procédure de purification pour les problèmes de complémentarité linéaire, monotones
p. 63-83

Issue no. 2 Table of Contents

Advances in modelling of complex systems : preface to the special issue
p. 85-88
Modeling and simulation with augmented reality
p. 89-103
Product form solution for g-networks with dependent service
p. 105-119
Optimal control and performance analysis of an M X /M/1 queue with batches of negative customers
p. 121-151
Optimal control for a BMAP/SM/1 queue with MAP-input of disasters and two operation modes
p. 153-171
Characterization of the departure process from an ME/ME/1 queue
p. 173-191

Issue no. 3 Table of Contents

Entropy maximization and the busy period of some single-server vacation models
p. 195-213
Utilisation de la programmation dynamique dans la modélisation de la pêcherie de la sardine au Maroc
p. 215-225
Maximum likelihood estimates and confidence intervals of an M/M/R/N queue with balking and heterogeneous servers
p. 227-241
Application des lois non paramétriques dans les systèmes d'attente et la théorie de renouvellement
p. 243-254
On constraint qualifications in directionally differentiable multiobjective optimization problems
p. 255-274

Issue no. 4 Table of Contents

Deterministic global optimization using interval constraint propagation techniques
p. 277-293
Two new classes of trees embeddable into hypercubes
p. 295-303
On dual vector optimization and shadow prices
p. 305-317
Fast approximation of minimum multicast congestion - Implementation versus theory
p. 319-344
A threshold accepting approach to the open vehicle routing problem
p. 345-360