PETRINA, D. Ya. Equilibrium and Nonequilibrium States of the Model Fröhlich–Peierls Hamiltonian. Ukrains’kyi Matematychnyi Zhurnal, [S. l.], v. 55, n. 8, p. 1069–1086, 2003. Disponível em: https://umj.imath.kiev.ua/index.php/umj/article/view/3982. Acesso em: 6 dec. 2025.