BAIZHANOV, B.; ZAMBARNAYA, T. Infinite discrete chains and the maximal number of countable models. Journal of Mathematics, Mechanics and Computer Science, [S. l.], v. 112, n. 4, 2021. DOI: 10.26577/JMMCS.2021.v112.i4.04. Disponível em: https://bm.kaznu.kz/index.php/kaznu/article/view/952. Acesso em: 22 dec. 2024.