WILSON, T.; VILCHES, O. E. Helium adsorbed on carbon nanotube bundles: one-dimensional and/or two-dimensional solids? Physics in Quantum Crystals. ФІЗИКА НИЗЬКИХ ТЕМПЕРАТУР, Харків, Україна, v. 29, n. 9-10, p. 975–979, 2003. DOI: 10.1063/1.1614179. Disponível em: http://fnt.ilt.kharkov.ua/index.php/fnt/article/view/f29-0975e. Acesso em: 5 трав. 2024.