1. L. V. Kantorovich and V. I. Krylov, Approximate Methods of Higher Analysis (Fizmatgiz, Moscow, 1962; Wiley, New York, 1964).
2. W. Koppenfels and F. Stallmann, Praxis der konformen Abbildung (Springer-Verlag, Berlin, 1959).
3. D. Gaier, Konstructive Methoden der konformen Abbildung (Springer-Verlag, Berlin, 1964).
4. L. N. Trefethen, “Numerical computation of the Schwarz–Christoffel transformation,” SIAM J. Sci. Stat. Comput. 1, 82–102 (1980).
5. Numerical Conformal Mapping, Ed. by L. N. Trefethen (North-Holland, Amsterdam, 1986).