1. S. V. Tyablikov, Methods in the Quantum Theory of Magnetism [in Russian], Nauka, Moscow (1965); English transl., Plenum, New York (1967).
2. S. V. Tyablikov, Methods in the Quantum Theory of Magnetism [in Russian] (2nd ed., rev. and suppl.), Nauka, Moscow (1975).
3. Yu. G. Rudoy, “Contemporary status of the two-times Green’s function method in the quantum theory of magnetism [in Russian],” in: Statistical Physics and Quantum Field Theory (N. N. Bogoliubov, ed.), Nauka, Moscow (1973), p. 97–164.
4. N. N. Bogolyubov and S. V. Tjablikov, Sov. Phys. Dokl., 4, 589–593 (1959).
5. D. N. Zubarev, Usp. Fiz. Nauk, 71, 71–116 (1960).