1. Iterative Solution of Nonlinear Equations in Several Variables;Ortega,1970
2. Iterative Methods for the Solution of Equations;Traub,1964
3. Solutions of Equations and System of Equations;Ostrowski,1960
4. Optimal order of one-point and multipoint iteration;Kung;J. Assoc. Comput. Math.,1974
5. A class of two-step Steffensen type methods with fourth-order convergence;Ren;Appl. Math. Comput.,2009