YESHKEYEV, A.R. The similarity of closures of Jonsson sets. Bulletin of the Karaganda University. Mathematics Series, [S. l.], v. 81, n. 1, p. 35–40, 2016. Disponível em: https://mts.buketov.edu.kz/index.php/mathematics-vestnik/article/view/74. Acesso em: 10 jul. 2025.