TISHCHENKO, S. V. On one class of topological *-algebras with standard identities. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 59, n. 1, p. 140–143, 2007. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/3298. Acesso em: 6 dec. 2025.