1. Boman, J.: Supremum norm estimates for partial derivatives of functions of several real variables. Ill. J. Math. 16, 203–216 (1972)
2. Bourgain, J.: Some remarks on Banach spaces in which martingale difference sequences are unconditional. Ark. Mat. 21, 163–168 (1983)
3. Bourgain, J.: Vector-valued singular integrals and the H
1-BMO duality. In: Chao, J.-A., Woyczyński, W.A. (eds.) Probability Theory and Harmonic Analysis, Cleveland, 1983, pp. 1–19. Monogr. Textbooks Pure Appl. Math., 98. Dekker, New York (1986)
4. Burkholder, D.L.: A geometric condition that implies the existence of certain singular integrals of Banach-space-valued functions. In: Beckner, W., Calderón, A.P., Fefferman, R., Jones, P.W. (eds.) Conference on Harmonic Analysis in Honor of A. Zygmund, Chicago, 1981, pp. 270–286. Wadsworth Math. Series. Wadsworth, Belmont (1983)
5. Clément, P., de Pagter, B., Sukochev, F.A., Witvliet, H.: Schauder decomposition and multiplier theorems. Studia Math. 138, 135–163 (2000)