PROTASOV, I. V. On the Suslin Number of Totally-Bounded Left-Topological Groups. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 54, n. 11, p. 1581–1573, 2002. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/4195. Acesso em: 6 dec. 2025.