1. A. N. Vasil’ev, Functional Methods in Quantum Field Theory and Statistics (Leningrad, Izdatelstvo Leningradskogo universiteta, 1976), English transl. (New York, Gordon and Breach, 1998).
2. J. I. Kapusta and C. Gale, Finite-Temperature Field Theory: Principles and Applications (Cambridge University Press, 2006).
3. H. Umezawa, H. Matsumoto, and M. Tachiki, Thermo Field Dynamics and Condensed States (Amsterdam, North Holland, 1982).
4. N. E. Hurt, Geometric Quantization in Action: Applications of Harmonic Analysis in Quantum Statistical Mechanics and Quantum Field Theory (Dordrecht, Reidel, 1983), Russian transl. (Moscow, Mir, 1985).
5. A. A. Abrikosov, L. P. Gorkov, and I. E. Dzyaloshinski, Quantum Field Theoretical Methods in Statistical Physics (Moscow, Fizmatgiz, 1962), English transl. (New York, Pergamon, 1965).