References
- Anal. Probab. v.9 A geometric characterization of Banach spaces in which martingale difference sequences are unconditional D.L.Burkholder
- Proceedings of the Third International Conference on Probability on Banach spaces,1980 Lecture Notes in Mathematics v.860 Martingale transforms and the geometry of Banach spaces D.L.Burkholder
- C.I.M.E. Lectures, Varenna(Como), Italy, 1985, Lecture Notes in Mathematics v.1206 Martingales and Fourier analysis in Banach spaces D.L.Burkholder
- Trigonometric series A.Zygmund