1. M. Mehring,Principles of High-Resolution NMR in Solids (Springer, New York, 1983). B. C. Gerstein and C. R. Dybowski,Transient Techniques in NMR of Solids?An Introduction to Theory and Practice (Academic Press, New York, 1985).
2. S. Yajima, inHandbook of Composites, Strong Fibers, Vol. 1, W. Watt and D. V. Petrov, eds. (North-Holland, Amsterdam, 1985), p. 201.
3. Y. Hasegawa, M. Iimura, and S. Yajima,J. Mater. Sci. 15, 720 (1980).
4. K. Okamura, M. Sato, T. Matsuzawa, and Y. Hasegawa,Polym. Preprint 25, 4 (1984).
5. K. Okamura, M. Sato, and T. Matsuzawa, UTRCNG-14, 103 (1984).