1. N.N. Bogoljubov, D.Ya. Petrina, B.I. Khatset, Mathematical description of the equilibrium state of the classical system on the basis of the formalism of the canonical ensemble, Teor. Mat. Fiz. 3, 251–274 (1969). Translation in : Theor. Math. Phys. 1, 194–212 (1969)
2. N.N. Bogoljubov, B.I. Khatset, On some mathematical problems of the theory of statistical equilibrium, Doklady Academii Nauk USSR. 66, 321–324 (1949)
3. R.L. Dobrushin, Investigation of conditions for the asymptotic existence of the configuration integral of Gibbs distribution, Teor. Ver. Prim. 9, 626–643 (1964). Translated in : Theory Probab. Appl. 9, 566–581 (1964)
4. R.L. Dobrushin, Existence of a phase transition in the two and three dimensional Ising models, Teor. Ver. Prim. 10, 209–230 (1965). Translated in : Theory Probab. Appl. 10, 193–213 (1965)
5. F.A. Berezin, Ya.G. Sinai, Existence of phase transitions for the lattice gas with interparticle attractions, Trudy Mosc. Mat. Ob. 17, 219–236 (1967)