IMANBAYEVA, A. Содержание 1 (32) 2010. Recent Contributions to Physics, [S. l.], v. 32, n. 1, p. 97, 2018. Disponível em: https://bph.kaznu.kz/index.php/zhuzhu/article/view/1067. Acesso em: 6 дек. 2025.