1. J.G. Kirkwood, I. Oppenheim, Chemical Thermodynamics (McGraw-Hill, New York, 1961)
2. M. Born, K. Huang, Dynamical Theory of Crystal Lattices (Oxford University Press, Oxford, 1968)
3. D. Chandler, Introduction to Modern Statistical Mechanics (Oxford University Press, New York, 1987)
4. G.L. Lamb, Elements of Soliton Theory (Wiley, New York, 1980)
5. H. Haken, Quantenfeldtheorie des Festkörpers (B. G. Teubner, Stuttgart, 1973)