The Taylor Series Expansions for Performance Functions of Queues: Sensitivity Analysis. - Sofiane Ouazine; Karim Abbas; Bernd Heidergott (ASMTA, 2013)

A Numerical Analysis of the M/G/1/N Queue with Vacations. - Karim Abbas; Sofiane Ouazine (WODES, 2014)

A functional approximation for retrial queues with two way communication. - Sofiane Ouazine; Karim Abbas (Ann. Oper. Res., 2016)