K. Abbo, K. “Modifying Of Barzilai and Borwein Method for Solving Large-Scale Unconstrained Optimization Problems”. IRAQI JOURNAL OF STATISTICAL SCIENCES, vol. 7, no. 1, June 2025, pp. 27-46, https://rjps.uomosul.edu.iq/index.php/stats/article/view/20709.