TISHCHENKO, S. V. On One Class of Matrix Topological *-Algebras. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 53, n. 10, p. 1436–1439, 2001. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/4363. Acesso em: 6 dec. 2025.