M. V. Ignatenko, “Quadrature formulas of the Gaussian type with a diagonal weight matrix for matrix-valued functions”, Журнал Белорусского государственного университета. Математика. Информатика, no. 1, pp. 29–44, Apr. 2024, Accessed: Nov. 11, 2026. Available: https://journals.bsu.by/index.php/mathematics/article/view/5661