SUDOPLATOV, S.V. On the separability of elements and sets in hypergraphs of models of a theory. Bulletin of the Karaganda University. Mathematics Series, [S. l.], v. 82, n. 2, p. 113–120, 2016. Disponível em: https://mts.buketov.edu.kz/mathematics-vestnik/article/view/119. Acesso em: 8 dec. 2025.