I. Amen, Azad, آزاد, Rizgar H. Salih, and رزکار. “Limit Cycles of Lorenz System With Hopf Bifurcation”. AL-Rafidain Journal of Computer Sciences and Mathematics 5, no. 1 (June 25, 2025): 81–99. Accessed August 3, 2025. https://rjps.uomosul.edu.iq/index.php/csmj/article/view/20072.