1. J. B. Donnet andR. C. Bansal, ?Carbon Fibres? (Marcel Dekker, New York, 1984).
2. W. Watt andB. V. Perov, ?Strong Fibres? (Elsevier, Amsterdam, 1985) ch. XII?XIV.
3. D. J. Johnson,Chem. and Ind. 692 (1982).
4. M. Santappa,J. Indian Chem. Soc. LIX (1982) 321.
5. Y. S. Ko andG. P. Daumit, Proceedings Fiber Production Conference, Greenville 5A-18 (1986).