POPOVYCH, S. V. Monomial ∗-algebras and Tapper’s conjecture. Methods of Functional Analysis and Topology, [S. l.], v. 8, n. 1, p. 70–74, 2002. Disponível em: https://zen.imath.kiev.ua/index.php/mfat/article/view/177. Acesso em: 18 dec. 2025.