1. Laboratoire de Mathématiques de Besançon, UMR 6623, Université Bourgogne Franche-Comté, Besançon, France;
2. Ecole Doctorale des Sciences et de Technologie, Université Libanaise, Beirut, Lebanon;
3. Department of Applied Mathematics, Faculty of Sciences, Lebanese University, Hadat, Lebanon;
4. PhyToxE, Environmental Physio-Toxicity Group, Rammal Hassan Rammal Laboratory, Faculty of Sciences, Lebanese University, Nabatieh, Lebanon