Stability and Bifurcation in an Age-Structured Predator–Prey System with Beddington–Deangelis Response, Constant Prey Harvesting, and Two DelaysDongxue Yan, Yongxian Jin and Yuan YuanMath. Model. Nat. Phenom., 21 (2026) 9DOI: https://doi.org/10.1051/mmnp/2026006
