1. M. M. Day, Normed Linear Spaces, Academic Press, New York (1962).
2. D. E. Wulbert, ?Some complemented function spaces in C(X),? Pac. J. Math.,24, No. 3, 589?602 (1968).
3. E. W. Cheney and K. H. Price, ?Minimal projections,? in: Approximation Theory, Academic Press, New York (1970), pp. 261?289.
4. H. B. Cohen and F. E. Sullivan, ?Projecting onto cycles in smooth, reflexive Banach Spaces,? Pac. J. Math.,34, No. 2, 355?364 (1970).
5. V. P. Odinets, ?Uniqueness of projections with a norm equal to 1 in a Banach space,? Izv. Vyssh. Uchebn. Zaved., Mat.,1, 82?89 (1974).