YESHKEYEV, A.R.; URKEN, G.A. The admissibility and similarity of Jonsson theories. Bulletin of the Karaganda University. Mathematics Series, [S. l.], v. 89, n. 1, p. 42–48, 2018. DOI: 10.31489/2018m1/42-48. Disponível em: https://mts.buketov.edu.kz/index.php/mathematics-vestnik/article/view/212. Acesso em: 10 jul. 2025.