HUBER, T. E.; BOCCUZI, F. Electrical charging of helium and hydrogen droplets. ФІЗИКА НИЗЬКИХ ТЕМПЕРАТУР, Харків, Україна, v. 24, n. 2, p. 171–171, 1998. DOI: 10.1063/1.593555. Disponível em: http://80.92.230.95/index.php/fnt/article/view/f24-0171e. Acesso em: 10 лис. 2025.