1. Construction of fixed points of nonlinear mappings in Hilbert space;Browder;J. Math. Anal. Appl.,1967
2. On the Mann iterative process;Dotson;Trans. Amer. Math. Soc.,1970
3. A generalization of Banach's contraction principle;Ćirić,1974
4. A theorem on mean value iterations;Franks,1971
5. Fixed points by a new iteration method;Ishikawa,1974