GOGINAVA, U.; NAGY, K. Almost everywhere convergence of two-dimensional Walsh-Nörlund means. Carpathian Mathematical Publications, [S. l.], v. 16, n. 1, p. 290–302, 2024. DOI: 10.15330/cmp.16.1.290-302. Disponível em: http://pu.if.ua/index.php/cmp/article/view/5974. Acesso em: 3 jul. 2024.