DJABBAROV, G. F.; DAVLETOV, D. E. Functor of semiadditive functionals. Methods of Functional Analysis and Topology, [S. l.], v. 14, n. 4, p. 314–322, 2008. Disponível em: https://zen.imath.kiev.ua/index.php/mfat/article/view/394. Acesso em: 16 dec. 2025.