1. Rudnicki, J. W., Kanamori, H.: Effects of fault interaction on moment, stress drop, and strain energy release. J. Geophys. Res.86, 1785 (1918).
2. Comninou, M.: The interface crack. J. Appl. Mech.44, 631 (1977).
3. Tricomi, F. G.: Integral equations. New York: Interscience Publishers, Inc. 1956.
4. Muskhelishvili, N. I.: Singular integral equations. Groningen: P. Noordhoff 1953.
5. Theocaris, P. S.: On the numerical solution of Cauchy-type singular integral equations. Serdica Bulg. Math. Publ.2, 256 (1976).