1. P.S. Pershan, Structure of liquid crystal phases (World Scientific, London, 1988)
2. S. Kumar, Liquid crystals: experimental study of physical properties and phase transitions (Cambridge University Press, Cambridge, 2001)
3. G.W. Gray, J.W. Goodby, Smectic liquid crystals-textures and structures (Leonard Hill, Glasgow, 1984)
4. P.A.C. Gane, A.J. Leadbetter, P.G. Wrighton, Structure and correlations in smectic B, F and I phases. Mol. Cryst. Liq. Cryst. 66, 247–266 (1981). https://doi.org/10.1080/00268948108072678
5. W. Helfrich, G. Heppke, Liquid crystals of one-and two-dimensional order, in Proceedings of the Conference on Liquid Crystals of One-and Two-Dimensional Order and Their Applications, (Springer, Berlin, 2012) Garmisch-Partenkirchen, Federal Republic of Germany