Li, Yuji, Rui Xu, and Jiazhe Jiazhe. “Global Dynamics for a Class of Infection-Age Model With Nonlinear Incidence”. Nonlinear Analysis: Modelling and Control 24, no. 1 (December 14, 2018): 47–72. Accessed May 4, 2024. https://www.journals.vu.lt/nonlinear-analysis/article/view/12918.