AKGÜN, R. Trigonometric approximation of functions in generalized Lebesgue spaces with variable exponent. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 63, n. 1, p. 3–23, 2011. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/2695. Acesso em: 27 apr. 2025.