Computational Difficulties of Bilevel Linear Programming. - Omar Ben-Ayed; Charles E. Blair (Oper. Res., 1990)

Construction of a real-world bilevel linear programming model of the highway network design problem. - Omar Ben-Ayed; Charles E. Blair; David E. Boyce; Larry J. LeBlanc (Ann. Oper. Res., 1992)

Bilevel linear programming. - Omar Ben-Ayed (Comput. Oper. Res., 1993)

Three different operations research models for the same ( s, S) policy. - Omar Ben-Ayed (Adv. Decis. Sci., 2001)

Multiobjective multiproduct parcel distribution timetabling: a real-world application. - Omar Ben-Ayed; Salem Hamzaoui (Int. Trans. Oper. Res., 2012)

Timetabling hub-and-spoke parcel distribution inter-facility network. - Omar Ben-Ayed (Int. J. Adv. Oper. Manag., 2013)

Parcel distribution network design problem. - Omar Ben-Ayed (Oper. Res., 2013)

Parcel Distribution Timetabling Problem with Incomplete Hub Network. - Omar Ben-Ayed; Salem Hamzaoui; Faiza Zalila; Belaïd Aouni (INFOR Inf. Syst. Oper. Res., 2014)