ZAITOV, A. A. On monad of order-preserving functionals. Methods of Functional Analysis and Topology, [S. l.], v. 11, n. 3, p. 306–308, 2005. Disponível em: https://zen.imath.kiev.ua/index.php/mfat/article/view/288. Acesso em: 16 dec. 2025.