VIRCHENKO, Yu. P. Correlation inequalities for statistical models of lattice gas. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 50, n. 6, p. 765–773, 1998. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/4886. Acesso em: 6 dec. 2025.