Ignatenko, Marina V. “Quadrature Formulas of the Gaussian Type With a Diagonal Weight Matrix for Matrix-Valued Functions”. Journal of the Belarusian State University. Mathematics and Informatics, no. 1 (April 4, 2024): 29–44. Accessed July 18, 2026. https://journals.bsu.by/index.php/mathematics/article/view/5661.