1. See any modern textbook on Quantum field theory, for example Field Theory, the renormalization group, and critical phenomena, McGraw-Hill, New York (1978);
2. Relativistic Quantum Fields, Academic Press, London, (1978);
3. Chiral Dynamics, Gordon and Breach, New York (1971);
4. , Quantum Field Theory, McGraw-Hill New York (1980).
5. Many-Body Problem in Quantum Statistical Mechanics. IV. Formulation in Terms of Average Occupation Number in Momentum Space