1. C.L. Mantell (editor), Carbon and Graphite Handbook, Wiley-Interscience, New York, 1968.
2. O. L. Blakslee et al., “Elastic Constants of Compression-Annealed Pyrolytic Graphite,” J. Appl. Phys. 41, 3373 (1970).
3. W. S. Williams et al., “Bending Behavior and Tensile Strength of Carbon Fibers,” J. Appl. Phys. 41, 4893 (1970).
4. G. B. Spence, in: Proceedings of the Fifth Conferenceon Carbon, Vol. 11, Pergamon Press, New York, 1962, p. 53.
5. Courtaulds Limited, U.S. Patent 3,533,741, 1970.