A Study of Oguchi Approximation (OA) for Ising-Spin Magnetic Model . University of Thi-Qar Journal of Science, [S. l.], v. 1, n. 2, p. 87–93, 2008. Disponível em: http://mail.jsci.utq.edu.iq/index.php/main/article/view/297.. Acesso em: 26 dec. 2024.