NOVIKOV, O.O.; ROVENSKA, O.G. Approximation of the periodical functions of high smoothness by the rightangled Fourier sums. Carpathian Mathematical Publications, [S. l.], v. 5, n. 1, p. 102–109, 2013. DOI: 10.15330/cmp.5.1.102-109. Disponível em: https://journals.pnu.edu.ua/index.php/cmp/article/view/3657. Acesso em: 19 jul. 2024.