1. Two Liquid Crystal Phases with Nematic Morphology in Laterally Substituted Phenylenediamine Derivatives
2. Available from Eastman Kodak Co., Eastman Organic Chemicals, Rochester, New York, 14650, USA.
3. Available from Frinton Laboratories, P.O. Box 301, Grant Ave., S. Vineland, New Jersey 08360, USA.
4. Liquid Crystals and Ordered Fluids;Arora,1970