STEPANETS, O. I. Best Approximations of $q$-Ellipsoids in Spaces $S_{ϕ}^{p,μ}$. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 56, n. 10, p. 1378–1383, 2004. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/3850. Acesso em: 14 apr. 2025.