“Hopf Bifurcation Analysis for a Delayed Business Cycle Model — The Equivalence of Multiple Time Scales Versus Center Manifold Reduction Methods”. Journal of Nonlinear Modeling and Analysis 3, no. 3 (April 10, 2024): 403–419. Accessed December 6, 2025. https://www.global-sci.com/index.php/jnma/article/view/13607.