B. Rogowski, “On the Solution of a Concentrated Torque Problem for a Non-Homogeneous Orthotropic Half-Space”, Eng. Trans., vol. 40, no. 2, pp. 177–186, Jul. 1992, Accessed: Jan. 17, 2026. [Online]. Available: http://et.ippt.gov.pl/index.php/et/article/view/1589