ZENKOV, A.V. VARIETIES WITH XN*=X-N IDENTITY M-GROUPS. Bulletin of the Karaganda University. Mathematics Series, [S. l.], v. 82, n. 2, p. 63–67, 2016. Disponível em: http://mts.buketov.edu.kz/index.php/mathematics-vestnik/article/view/103. Acesso em: 24 aug. 2025.