Domain of Euler Mean in the Space of Absolutely $p$-Summable Double Sequences with $0< p. Analysis in Theory and Applications, [S. l.], v. 34, n. 3, p. 241–252, 2018. DOI: 10.4208/ata.OA-2017-0056. Disponível em: https://global-sci.com/index.php/ata/article/view/15710. Acesso em: 6 dec. 2025.