YANSON, I. K. Point-contact spectroscopy of high- Tc superconductors. ФІЗИКА НИЗЬКИХ ТЕМПЕРАТУР, Харків, Україна, v. 18, n. 6, p. 585–585, 1992. Disponível em: http://80.92.230.95/index.php/fnt/article/view/f18-0585e. Acesso em: 20 чер. 2025.