FREIRE, Fernando O.; MACEDO, Claudio Andrade. The two-dimensional Hubbard model in the Hartree-Fock approximation. Scientia Plena, [S. l.], v. 4, n. 12, 2011. Disponível em: https://scientiaplena.org.br/sp/article/view/652. Acesso em: 15 abr. 2025.