R. Chapko and B. T. Johansson, “Boundary-integral approach for the numerical solution of the Cauchy problem for the Laplace equation”, Ukr. Mat. Zhurn., vol. 68, no. 12, pp. 1665–1682, Dec. 2016, Accessed: Feb. 16, 2026. [Online]. Available: https://umj.imath.kiev.ua/index.php/umj/article/view/1952