1. Guo, J.- X. & Gray, D. G. in Cellulosic Polymers, Blends and Composites (ed. Gilbert, R.D.) Ch. 2 (Carl Hanser, Munich and New York, 1994).
2. Gray, D. G. & Harkness, B. R. in Liquid Crystalline and Mesomorphic Polymers (eds Shibaev, V.P. & Lam, L.) 298 (Springer, New York, 1994).
3. Zugenmaier, P. in Cellulosic Polymers, Blends and Composites (ed. Gilbert, R.D.) Ch. 4 (Carl Hanser, Munich and New York, 1994).
4. Zugenmaier, P. in Handbook of Liquid Crystals (eds Demus, D., Goodby, J., Gray, G.W., Spiess, H.-W. & Vill, V.) Vol. 3, Ch. 9 (Wiley, Weinheim, 1998).
5. Werbowyj, R. S. & Gray, D. G. Ordered phase formation in concentrated hydroxypropyl cellulose solutions. Macromolecules 13, 69–73 (1980).