1. King, F.W.: Hilbert Transforms, vol. 2. Cambridge University Press, Cambridge (2009)
2. Zhdanov, M. S. (1984). Integral transforms in geophysics. Springer-Verlag, 1988, 1–367. English version of the book: Analogues of the Cauchy type integral in a theory of geophysical fields, Nauka, Moscow, 1–326
3. Luna-Elizarrarás, M.E., Pérez-de la Rosa, M.A., Shapiro, M.: On some analogues of the Hilbert formulas on the unit sphere for solenoidal and irrotational vector fields. Trans Inst Math Nat Acad Sci Ukraine 10(4–5), 246–266 (2013)
4. Pérez-de la Rosa, M.A., Shapiro, M.: On the Hilbert operator and the Hilbert formulas on the unit sphere for the time-Harmonic Maxwell equations. Appl. Math. Comput. 248, 480–493 (2014)
5. Pérez-de la Rosa, M.A.: On the Hilbert formulas on the unit sphere for the time-Harmonic relativistic Dirac Bispinors theory. J. Math. Anal. Appl. 416(2), 575–596 (2014)