1. Reinitzer, F.: Beiträge zur Kenntnis des Cholesterins. Monatsh. Chem. 9, 421–441 (1888)
2. Stegemeyer, H.: Liquid Crystals, vol. 3. Springer, New York (1994)
3. Chandrasekhar, S.: Liquid Crystals, 2nd edn. Cambridge University Press, Cambridge (1992)
4. Pauluth, D., Tarumi, K.: Optimization of liquid crystals for television. J. SID 13/8, 693–702 (2005)
5. Sage, I.C.: Displays. In: Demus, D., Goodby, J.W., Gray, G.W., Spiess, H.-W. (eds.) Handbook of Liquid Crystals, vol. 1: Fundamentals, chap. IX, p. 731. Wiley, Weinheim (1998)