1. K. H. Jack, in ldNon-Oxide Technical and Engineering Ceramics”, edited by Stuart Hampshire (Elsevier, 1986) p. 1.
2. I. J. McColm,in “Ceramic Science for Materials Technologists” (Leonard Hill, New York, 1983).
3. K. H. Jack, in “High Technology Ceramics”, Vol. 3 of “Ceramics & Civilization”, edited by W. D. Kingery (American Chemical Society, 1986).
4. Idem, J. Mater. Sci.
11 (1976) 1135.
5. A. J. Moulson, ibid.
14 (1979) 1017.