S. V. Gryshchuk and S. A. Plaksa, “Integral representations of generalized axially symmetric potentials in a simply connected domain”, Ukr. Mat. Zhurn., vol. 61, no. 2, pp. 160–177, Feb. 2009, Accessed: Apr. 16, 2025. [Online]. Available: https://umj.imath.kiev.ua/index.php/umj/article/view/3012