Stetsyuk, P., V. Stovba, and A. Suprun. “B-FORM OF THE DAVIDON–FLETCHER–POWELL METHOD”. Journal of Numerical and Applied Mathematics, no. 2 (136) (December 30, 2021): 93–110. Accessed October 6, 2026. https://jnam.knu.ua/index.php/jnam/article/view/130.