PATSEIKA, Pavel G.; ROUBA, Yauheni A.; SMATRYTSKI, Kanstantin A. On one rational integral operator of Fourier – Chebyshev type and approximation of Markov functions. Journal of the Belarusian State University. Mathematics and Informatics, [S. l.], n. 2, p. 6–27, 2020. DOI: 10.33581/2520-6508-2020-2-6-27. Disponível em: https://journals.bsu.by/index.php/mathematics/article/view/3139. Acesso em: 17 jul. 2026.