BALKASHIN, O. P. Metallic point contacts in high frequency field. ФІЗИКА НИЗЬКИХ ТЕМПЕРАТУР, Харків, Україна, v. 18, n. 6, p. 659–660, 1992. Disponível em: http://80.92.230.95/index.php/fnt/article/view/f18-0659e. Acesso em: 11 лис. 2025.