1. The Large N Expansion in Quantum Field Theory and Statistical Physics, Ed. by E. Brézin and S. R. Wadia (World Scientific, Singapore, 1993).
2. J. Zinn-Justin, Quantum Field Theory and Critical Phenomena (Clarendon Press, Oxford, 1999).
3. A. N. Vasil’ev, Quantum Field Renormalization Group in the Theory of Critical Behavior and Stochastic Dynamics (Peterburg. Inst. Yad. Fiz., St. Petersburg, 1998).
4. E. Brézin and J. Zinn-Justin, Phys. Rev. B 14(7), 3110 (1976).
5. A. M. Polyakov, Gauge Fields and Strings (Inst. Teor. Fiz. im. L. D. Landau, Chernogolovka, 1995).