1. E. M. Alfsen,Compact Convex Sets and Boundary Integrals, Springer-Verlag, Berlin, 1971.
2. R. Arens and A. Calderón,Analytic functions of several Banach algebra elements, Ann. of Math.62 (1955), 204–216.
3. E. Bishop,Holomorphic completions, analytic continuations, and the interpolation of seminorms, Ann. of Math.78 (1963), 468–500.
4. H. Bremermann,On a generalized Dirichlet problem for plurisubharmonic functions and pseudo-convex domains. Characterization of Shilov boundaries, Trans. Am. Math. Soc.91 (1959), 246–276.
5. D. L. Burkholder, R. F. Gundy and M. L. Silverstein,A maximal function characterization of the class H p, Trans. Am. Math. Soc.157 (1971), 137–153.