Petrina, D. Y. (2003) “Equilibrium and Nonequilibrium States of the Model Fröhlich–Peierls Hamiltonian”, Ukrains’kyi Matematychnyi Zhurnal, 55(8), pp. 1069-1086. Available at: https://umj.imath.kiev.ua/index.php/umj/article/view/3982 (Accessed: 8May2024).