BENEDEK, G.; KALININ, A.; NIETO, P.; TOENNIES, J. P. Vacancy assisted flow of solid helium. Recent Contributions to Physics, [S. l.], v. 2015, n. 3, p. 62–63, 2015. Disponível em: https://bph.kaznu.kz/index.php/zhuzhu/article/view/822. Acesso em: 4 янв. 2026.