DAGADUR, I. $C_\lambda$-semiconservative $FK$-spaces. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 64, n. 7, p. 908–918, 2012. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/2627. Acesso em: 5 dec. 2025.