Lotfi, El Mehdi, Khalid Hattaf, and Noura Yousfi. 2026. “Stability and Hopf Bifurcation of an Epidemic Model With Logistic Growth and Delay”. Discontinuity, Nonlinearity, and Complexity 8 (4): 379-89. https://doi.org/10.5890/DNC.2019.12.003.