1. G. N. Pykhteev, Exact Methods for Calculation of Integrals of Cauchy Type (Nauka, Novosibirsk, 1980) [in Russian].
2. G. G. Tumashev and M. T. Nuzhin, Inverse Boundary Value Problems with Applications (Kazansk. Gos. Univ., Kazan, 1965) [in Russian].
3. F. D. Gakhov, Boundary-Value Problems (Nauka, Moscow, 1977) [in Russian].
4. G. M. Goluzin, Geometric Theory of Functions of a Complex Variable (Nauka, Moscow, 1966) [in Russian].
5. V. I. Ivanov and V. Yu. Popov, Conformal Maps and Their Applications (URSS, Moscow, 2002) [in Russian].