1. S. M. Belotserkovskii and I. K. Lifanov, Numerical Methods in Singular Integral Equations (Nauka, Moscow, 1985) [in Russian].
2. B. G. Gabdulkhaev, ‘‘Spline methods for solving one class of singular integro-differential equations,’’ Izv. Vyssh. Uchebn. Zaved., Mat. 6, 14–24 (1975).
3. B. G. Gabdulkhaev, ‘‘Optimal quadrature formulas for singular integrals,’’ Izv. Vyssh. Uchebn. Zaved., Mat. 3, 24–39 (1978).
4. I. K. Lifanov, The Method of Singular Equations and Numerical Experiments (Yanus, Moscow, 1995) [in Russian].
5. F. D. Gakhov, Boundary Problems (Nauka, Moscow, 1977) [in Russian].