GRAZHULIS, V. A. Ultra-high vacuum investigations of atomic layers at low temperatures. ФІЗИКА НИЗЬКИХ ТЕМПЕРАТУР, Харків, Україна, v. 24, n. 2, p. 181–181, 1998. DOI: 10.1063/1.593559. Disponível em: https://fnt.ilt.kharkov.ua/index.php/fnt/article/view/f24-0181e. Acesso em: 4 трав. 2024.