DEĞER, U. A note on degree of approximation by matrix means in generalized Hölder metric. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 68, n. 4, p. 485–494, 2016. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/1854. Acesso em: 27 apr. 2025.