SAVAŞ , E. $\lambda$-Almost summable spaces. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 72, n. 10, p. 1410–1417, 2020. DOI: 10.37863/umzh.v72i10.396. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/396. Acesso em: 27 apr. 2025.