YESHKEYEV, A.R. Model-theoretical questions of the Jonsson spectrum. Bulletin of the Karaganda University. Mathematics Series, [S. l.], v. 98, n. 2, p. 165–173, 2020. DOI: 10.31489/2020m2/165-173. Disponível em: http://mts.buketov.edu.kz/index.php/mathematics-vestnik/article/view/353. Acesso em: 27 aug. 2025.