[1] Bruce Parks HILLAM: Ph. D. Dissertation, University of California (Riverside), 1973.
[2] E. RAKOTCH:
A note on contractive mappings. Proc. Amer. Math. Soc. 13 (1962), 452-465, q
MR 0148046 |
Zbl 0105.35202
[3] J. B. DIAZ P. T. METCALF:
On the set of subsequential limit points of successive approximations. Trans. Amer. Math. Soc. 135 (1969), 459-489.
MR 0234327