ROMANYUK, V. S. Kolmogorov widths and entropy numbers in the Orlich spaces with the Luxembourg norm. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 69, n. 5, p. 682–694, 2017. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/1727. Acesso em: 5 dec. 2025.