1. A. Ciferri and I. M. Ward, Ed., “Ultra-High Modulus Polymer,” Applied Science Publishers, London, 1979.
2. I. M. Ward, Ed. “Developments in Oriented Polymer,” Elsevier Applied Science, London, 1987.
3. “The Materials Science and Engineering of Rigid-Rod Polymers,” Symposium Proceedings of Material Research Society, Vol. 134, Material Research Society, 1989.
4. P. G. Lenhart and W. W. Adams, Symposium Proceedings of Material Research Society, Vol. 134, Material Research Society, 1989, p 329.
5. K. Tashiro and M. Kobayashi, Macromolecules, 24, 3706 (1991).