PRIKHNA, T. Modern superconductive materials for electrical machines and devices working on the principle of levitation: Experimental Methods and Applications. ФІЗИКА НИЗЬКИХ ТЕМПЕРАТУР, Харків, Україна, v. 32, n. 4-5, p. 661–676, 2006. DOI: 10.1063/1.2199455. Disponível em: https://fnt.ilt.kharkiv.ua/index.php/fnt/article/view/f32-0661e. Acesso em: 28 квіт. 2024.