Păvăloiu, Ion. “Aitken-Steffensen Type Methods for Nonsmooth Functions (III)”. Rev. Anal. Numér. Théor. Approx. 32, no. 1 (February 1, 2003): 73–77. Accessed May 8, 2024. https://ictp.acad.ro/jnaat/journal/article/view/2003-vol32-no1-art8.