Shakir Mahmood, Saad, Ali Ibrahim Mansour, and Haydir Ali Hassan. “The Diagonal Update for Unconstrained Optimization”. Journal of Education and Science (JES) 25, no. 3 (September 1, 2012): 68–73. Accessed August 6, 2025. https://ojs.uomosul.edu.iq/index.php/edusj/article/view/23988.