KRUSHINSKAYA, I.N.; BOLTNEV, R.E.; BYKHALO, I.B.; PELMENEV, A.A.; KHMELENKO, V.V.; LEE, D.M. Optical spectroscopy and current detection during warm-up and destruction of impurity-helium condensates. Recent Contributions to Physics, [S. l.], v. 2015, n. 3, p. 64–65, 2015. Disponível em: https://bph.kaznu.kz/index.php/zhuzhu/article/view/823. Acesso em: 5 июл. 2026.