MURADOV, A. D. INFLUENCE OF COLD TEMPERATURE ANNEALING ON OPTICAL PROPERTIES OF SYSTEM «POLYIMIDE – YBa2Cu3O6+x». Recent Contributions to Physics, [S. l.], v. 2009, n. 4, p. 78–82, 2009. Disponível em: https://bph.kaznu.kz/index.php/zhuzhu/article/view/230. Acesso em: 9 feb. 2026.