1. S. Bernstein, L. Lanzani, Szegö projections for Hardy spaces of monogenic functions and applications, IJMMS 29(10), 2002, 613–624.
2. S.R. Bell, The Cauchy Transform, Potential Theory, and Conformal Mapping, CRC Press (Boca Raton-Ann Arbor-London-Tokyo, 1992).
3. F. Brackx, B. De Knock, H. De Schepper, D. Eelbode, On the interplay between the Hilbert transform and conjugate harmonic functions, Math. Meth. Appl. Sci. 29(12), 2006, 1435–1450.
4. F. Brackx, R. Delanghe, F. Sommen, Clifford Analysis, Pitman Advanced Publishing Program (Boston-London-Melbourne, 1982).
5. F. Brackx, H. De Schepper, The Hilbert Transform on a Smooth Closed Hypersurface, CUBO, A Mathematical Journal 10(2), 2008, 83–106.