YESHKEYEV, A.R.; ISSAYEVA, A.K. ∇-cl-atomic and prime sets. Bulletin of the Karaganda University. Mathematics Series, [S. l.], v. 93, n. 1, p. 88–94, 2019. DOI: 10.31489/2019m1/88-94. Disponível em: http://mts.buketov.edu.kz/index.php/mathematics-vestnik/article/view/281. Acesso em: 7 sep. 2025.