1. Minimal projections;Cheney,1970
2. Normed Linear Spaces;Day,1962
3. Generalizations of the Alaoglu theorem with applications to approximation theory;Ikebe,1968
4. Projection constants and spaces of continuous functions;Isbell;Trans. Amer. Math. Soc.,1963
5. Uniqueness of Hahn-Banach extensions and unique best approximation;Phelps;Trans. Amer. Math. Soc.,1960