PHAT, T. H.; THU, N. V. Phase Structure of Linear Sigma Model without Neutrality Constraint (I). Communications in Physics, [S. l.], v. 22, n. 1, p. 15–31, 2012. DOI: 10.15625/0868-3166/22/1/630. Disponível em: https://vjs.ac.vn/index.php/cip/article/view/630. Acesso em: 20 apr. 2024.