1. P.-G. de Gennes, The Physics of Liquid Crystals (Clarendon, Oxford, 1974).
2. S. Chandrasekhar, Liquid Crystals (Cambridge Univ. Press, Cambridge, 1977).
3. A. S. Sonin, Introduction of Physics of Liquid Crystals (Nauka, Moscow, 1983) [in Russian].
4. A. P. Kapuctin, Experimental Studies of Liquid Crystals (Nauka, Moscow, 1978) [in Russian].
5. S. A. Pikin, Structural Transformations in Liquid Crystals (Nauka, Moscow, 1981).