IMANBAYEVA, Akmaral. Титул 1 (44) 2013. Recent Contributions to Physics, [S. l.], v. 2013, n. 1, p. 1–2, 2013. Disponível em: https://bph.kaznu.kz/index.php/zhuzhu/article/view/886. Acesso em: 5 июл. 2026.