1. R. Abreu and J. Bory (1998): Solvability of a Riemann linear conjugation problem on a fractal surface, Extracta Matematicae, Vol. 13, No. 1. (to appear)
2. R. Abreu and J. Bory (1998): Removable singularirties forH-regular functions of Zygmund class, Proc. Royal. Irish. Acad. (submitted)
3. F. Brackx, R. Delanghe and F. Sommen (1982): Clifford Analysis, Boston, Pitman.
4. A. A. Babaev and V. V. Salaev (1982): Boudary value problem and singular integral equation on a rectifiable contour, Mat. Zam, Vol. 31, No. 4, 571–580.
5. N. K. Bari and S. B. Stieshkin (1956). Best approximations and differential properties of conjugate functions, Tr. Mosk. Obsh. Tom. 5, 483–522.