NESSONOV, N. I.; BOYKO, M. Entropy of Bogoliubov automorphisms on II$_1$-representations of the group $U(\infty)$. Methods of Functional Analysis and Topology, [S. l.], v. 9, n. 4, p. 317–332, 2003. Disponível em: https://zen.imath.kiev.ua/index.php/mfat/article/view/225. Acesso em: 17 dec. 2025.