1.
Pankov AA, Pankova TE. Iterative reduction of the Dirichlet problem to the Neumann problem. Ukr. Mat. Zhurn. [Internet]. 1995 Mar. 25 [cited 2025 Dec. 5];47(3):362–369. Available from: https://umj.imath.kiev.ua/index.php/umj/article/view/5425