SHEVCHENKO, S. I. Quantized vortices in systems with pairing of spatially separated electrons and holes. ФІЗИКА НИЗЬКИХ ТЕМПЕРАТУР, Харків, Україна, v. 23, n. 9, p. 987–992, 1997. Disponível em: http://80.92.230.95/index.php/fnt/article/view/f23-0987e. Acesso em: 20 чер. 2025.