Plaksa, Sergiy Anatoliyovych, and Vitalii Stanislavovych Shpakivskyi. “Limiting Values of the Cauchy Type Integral in a Three-Dimensional Harmonic Algebra”. Eurasian Mathematical Journal 3, no. 2 (June 30, 2012): 120–128. Accessed October 31, 2025. https://emj.enu.kz/index.php/main/article/view/795.