Shakhno, S.M., and H.P. Yarmola. “Two-Step Secant Type Method With Approximation of the Inverse Operator”. Carpathian Mathematical Publications 5, no. 1 (June 21, 2013): 150–155. Accessed November 8, 2024. https://journals.pnu.edu.ua/index.php/cmp/article/view/3664.