RABANOVICH, V. I.; OSTROVSKYI, V. L. Some remarks on Hilbert representations of posets. Methods of Functional Analysis and Topology, [S. l.], v. 20, n. 2, p. 149–163, 2014. Disponível em: https://zen.imath.kiev.ua/index.php/mfat/article/view/575. Acesso em: 15 dec. 2025.