Argyros, Ioannis K. “A New Convergence Theorem for the Steffenssen Method in Banach Space and Applications”. Rev. Anal. Numér. Théor. Approx. 29, no. 2 (August 1, 2000): 119–127. Accessed November 22, 2024. https://ictp.acad.ro/jnaat/journal/article/view/2000-vol29-no2-art1.