Composition de polyèdres associés aux problèmes d'optimisation combinatoire. (Composition of polyhedra and their relation to some combinatorial optimization problems). - Ahmed Hadjar (1996)

The stable set polytope and some operations on graphs. - Jean Fonlupt; Ahmed Hadjar (Discret. Math., 2002)

A Branch-and-Cut Algorithm for the Multiple Depot Vehicle Scheduling Problem. - Ahmed Hadjar; Odile Marcotte; François Soumis (Oper. Res., 2006)

Tabu Search, Partial Elementarity, and Generalized k-Path Inequalities for the Vehicle Routing Problem with Time Windows. - Guy Desaulniers; François Lessard; Ahmed Hadjar (Transp. Sci., 2008)

Dynamic window reduction for the multiple depot vehicle scheduling problem with time windows. - Ahmed Hadjar; François Soumis (Comput. Oper. Res., 2009)

Path-Reduced Costs for Eliminating Arcs in Routing and Scheduling. - Stefan Irnich; Guy Desaulniers; Jacques Desrosiers; Ahmed Hadjar (INFORMS J. Comput., 2010)

Separating valid odd-cycle and odd-set inequalities for the multiple depot vehicle scheduling problem. - Mounira Groiez; Guy Desaulniers; Ahmed Hadjar; Odile Marcotte (EURO J. Comput. Optim., 2013)