BRONITSKAYA, N. A. Serial rings and tiled orders of width two. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 61, n. 2, p. 154–159, 2009. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/3011. Acesso em: 6 dec. 2025.