Arushanian, I. “Application of the Quadrature Method for Solving Boundary Integral Equations of Plane Elasticity Theory on Polygons”. Numerical Methods and Programming (Vychislitel’nye Metody I Programmirovanie), vol. 4, no. 4, Mar. 2003, pp. 142-54, https://en.num-meth.ru/index.php/journal/article/view/83.