A Taylor series approach to the numerical analysis of the M/D/1/N queue. - Karim Abbas; Bernd Heidergott; Djamil Aïssani (ICCS, 2010)

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

A functional approximation for the M/G/1/N queue. - Karim Abbas; Bernd Heidergott; Djamil Aïssani (Discret. Event Dyn. Syst., 2013)

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

Development and implementation of e-learning system in smart educational environment. - Amr Elsaadany; Karim Abbas (MIPRO, 2016)

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

A parametric uncertainty analysis method for queues with vacations. - Baya Takhedmit; Karim Abbas (J. Comput. Appl. Math., 2017)

A weak perturbation theory for approximations of invariant measures in M/G/1 model. - Badredine Issaadi; Karim Abbas; Djamil Aïssani (RAIRO Oper. Res., 2018)

Propagation of epistemic uncertainty in queueing models with unreliable server using chaos expansions. - Katia Bachi; Cédric Chauvière; Hacène Djellout; Karim Abbas (Commun. Stat. Simul. Comput., 2021)

Statistical Taylor series expansion: An approach for epistemic uncertainty propagation in Markov reliability models. - Katia Bachi; Karim Abbas; Bernd Heidergott (RAIRO Oper. Res., 2021)

Strong perturbation bounds for the stationary distribution of the main multi-server retrial queue model. - Nabil Ait Yala; Badredine Issaadi; Karim Abbas (Int. J. Math. Oper. Res., 2025)