SKRYPNIK, W. I. On an unbounded order parameter in lattice equilibrium GKS-type oscillator systems. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 61, n. 4, p. 538–547, 2009. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/3038. Acesso em: 17 apr. 2025.