1. Department of Computer Engineering, University Institute of Technology, University of Ngaoundéré, Ngaoundéré, Cameroon
2. African Institute for Mathematical Sciences (AIMS), Limbe, Cameroon
3. Department of Computer Science, University of Maroua, Maroua, Cameroon
4. DAVID Laboratory, Université Paris-Saclay, University of Versailles Saint-Quentin-en-Yvelines, Versailles, France
5. Department of Mathematics, Texas A&M University–Central Texas, Killeen, TX, USA
6. Université Gaston Berger de Saint-Louis, Saint-Louis, Sénégal
7. National Advanced School of Engineering, University of Yaoundé I, Yaoundé, Cameroon