1. Control and Energy Management Laboratory, National School of Engineering, University of Sfax, Sfax, Tunisia
2. Department of Statistics and Operations Research, College of Science, King Saud University, Riyadh, Saudi Arabia
3. Department of Mathematics, Faculty of Sciences of Sfax, University of Sfax, Sfax, Tunisia
4. Department of Mathematics, Panthéon-Assas University Paris II, Paris, France