1. D. Deums, L. Richter “Textures of Liquid Crystals” Verlag Chemie, Weinheim New York 1978
2. P. G. de Germes “The Physics of Liquid Crystals” Clarendon Press, Oxford 1974
3. S. Chandresekhar’,Adv.in Physics 35, 507(1986)
4. H. Finkelmann “Flüssigkristalline Polymere” Angew. Chemie 99, 840 (1987)
5. H. Ringdorf, I.G. Voigt-Martin, J. Wendorft, R. Wüstefeld, H. Zentel “Molecular Engineering of Liquid crystalline Polymers” in Chemistry and Physics of Macromolecules VHC Verlagsges. Weinheim 1991