ZVYAGIN, A. A. . Quantum topological effects in a metallic ring with an Anderson impurity. ФІЗИКА НИЗЬКИХ ТЕМПЕРАТУР, Харків, Україна, v. 21, n. 4, p. 446–450, 1995. Disponível em: http://fnt.ilt.kharkiv.ua/index.php/fnt/article/view/f21-0446e. Acesso em: 7 трав. 2024.