S. Younis, Maha. “A New Restarting Criterion for FR-CG Method With Exact and Inexact Line Searches”. AL-Rafidain Journal of Computer Sciences and Mathematics 5, no. 2 (December 7, 2008): 95–110. Accessed December 17, 2025. https://csmj.uomosul.edu.iq/index.php/csmj/article/view/36985.