KOSYAK, A. V. Regular representations of the group of finite upper-triangular matrices, corresponding to product measures, and criteria for their irreducibility. Methods of Functional Analysis and Topology, [S. l.], v. 6, n. 4, p. 43–55, 2000. Disponível em: https://zen.imath.kiev.ua/index.php/mfat/article/view/131. Acesso em: 17 dec. 2025.