Argyros, I. K., and S. George. “ON THE SEMILOCAL CONVERGENCE OF A TWO STEP NEWTON METHOD UNDER THE $\GAMMA-$CONDITION”. Journal of Nonlinear Analysis and Optimization: Theory & Applications (JNAO), vol. 6, no. 2, Nov. 2016, pp. 73-84, https://ph03.tci-thaijo.org/index.php/jnao/article/view/2782.