Liu, Xiaogang, Jinmian Han, Yue Lei, Dongqi Yue, and Huaigu Tian. 2026. “A Delay-Embedded D-SIRS Model for Associated Credit Risk Contagion on Complex Networks: Threshold, Equilibrium, and Robustness Analysis”. Contemporary Mathematics 7 (4):4748-70. https://doi.org/10.37256/cm.7420269876.