Elazzouzi, Abdelhai, Abdesslem Lamrani Alaoui, Mouhcine Tilioua, and Delfim F. M. Torres. “Analysis of a SIRI Epidemic Model With Distributed Delay and Relapse”. Statistics, Optimization & Information Computing 7, no. 3 (August 17, 2019): 545-557. Accessed November 15, 2024. http://47.88.85.238/index.php/soic/article/view/soic.20190903.