POPPE, G.; STRITZKER В.; HEIDEN, C. I. Deposition of high-T_c thin films and multilayers. ФІЗИКА НИЗЬКИХ ТЕМПЕРАТУР, Харків, Україна, v. 16, n. 5, p. 586–586, 1990. Disponível em: http://80.92.230.95/index.php/fnt/article/view/f16-0586ea. Acesso em: 11 лис. 2025.