IMANBAYEVA, Akmaral. Титул 4 (59) 2016. Recent Contributions to Physics, [S. l.], v. 2016, n. 4, p. 1–2, 2016. Disponível em: https://bph.kaznu.kz/index.php/zhuzhu/article/view/905. Acesso em: 5 июл. 2026.