RAFEIRO, Humberto; SAMKO, Stefan. Hardy type inequality in variable Lebesgue spaces. Annales Fennici Mathematici, [S. l.], v. 34, n. 1, p. 279–289, 2009. Disponível em: https://afm.journal.fi/article/view/135266. Acesso em: 13 dec. 2025.