Volkov, Vasiliy M., and Ekaterina I. Kachalouskaya. “An Iterative Chebyshev Spectral Solver for Two-Dimensional Elliptic Equations With Variable Coefficients”. Journal of the Belarusian State University. Mathematics and Informatics, no. 3 (December 13, 2023): 53–62. Accessed July 19, 2026. https://journals.bsu.by/index.php/mathematics/article/view/5668.