POZHARSKA, K.V.; ROMANYUK, A.S.; ROMANYUK, V.S. Widths and entropy numbers of the classes of periodic functions of one and several variables in the space $B_{q,1}$. Carpathian Mathematical Publications, [S. l.], v. 16, n. 2, p. 351–366, 2024. DOI: 10.15330/cmp.16.2.351-366. Disponível em: https://journals.pnu.edu.ua/index.php/cmp/article/view/8029. Acesso em: 16 dec. 2024.