IZOTOV, A.; EFIMOV, V. Infrared light interaction with impurity gels in superfluid helium. ФІЗИКА НИЗЬКИХ ТЕМПЕРАТУР, Харків, Україна, v. 37, n. 5, p. 509–511, 2011. DOI: 10.1063/1.3602857. Disponível em: https://fnt.ilt.kharkiv.ua/index.php/fnt/article/view/f37-0509e. Acesso em: 1 трав. 2024.