1. E. D. Bolker,A class of convex bodies, Trans. Amer. Math. Soc.145 (1969), 323–345.
2. J. Bretagnolle, D. Dacunha-Castelle and J.-L. Krivine,Lois stables et espaces L p, Ann. Inst. H. Poincaré2 (1966), 231–259.
3. R. V. Chacon,Potential functions and martingales (to appear).
4. A. Grothendieck,Résumé de la théorie métrique des produits tensoriels topologiques, Bol. Soc. Mat. São Paulo8 (1953), 1–79.
5. C. Herz,A class of negative definite functions, Proc. Amer. Math. Soc.14 (1963), 670–676.