SKRYPNIK, W. I. On polymer expansions for generalized Gibbs lattice systems of oscillators with ternary interaction. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 65, n. 5, p. 689–697, 2013. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/2452. Acesso em: 5 dec. 2025.