1. Wojtowicz, P.: Introduction to molecular theory of nematic liquid crystals. In: Priestley, E.B., Wojtowicz, P., Sheng, P. (eds.) Introduction to Liquid Crystals, Chapter 3, pp. 31–43. Plenum Press, New York (1975)
2. Landau, L.D., Lifshitz, E.M.: Statistical Physics, 5th edn. Nauka, Moscow (2001). (in Russian) [see also “Statistical Physics”, v. 1, 3rd ed., Pergamon, Oxford, 1980]
3. de Gennes, P.G.: Short-range order effects in the isotropic phase of nematics and cholesterics. Mol. Cryst. Liq. Cryst. 12, 193–214 (1971)
4. De Gennes, P.G., Prost, J.: The Physics of Liquid Crystals, 2nd edn. Clarendon, Oxford (1993)
5. Vertogen, G., de Jeu, V.H.: Thermotropic Liquid Crystals. Fundamentals. Springer-Verlag, Berlin (1987)