Kapanadze, D. V. “On the Uniqueness of a Solution of the Inverse Problem for a Simple-Layer Potential”. Ukrains’kyi Matematychnyi Zhurnal 60, no. 7 (July 25, 2008): 892–899. Accessed April 26, 2024. https://umj.imath.kiev.ua/index.php/umj/article/view/3207.