1. Goodby, J. W.; Gray, G. W. InHandbook of Liquid Crystals; Demus, D.; Goodby, J., Gray, G. W., Spiess, H.W., Vill, V., Eds.; Wiley-VCH: Weinheim, Germany, 1998; Vol. 1, pp 17−23.
2. Crossland, W.; Wilkinson, T. D. InHandbook of Liquid Crystals; Demus, D., Goodby, J., Gray, G. W., Spiess, H.W., Vill, V., Eds.; Wiley-VCH: Weinheim, Germany, 1998; Vol. 1, pp 763−822.
3. Ordered States of a Nematic Liquid