1. Jack, K. H. Sialons: a Study in Materials Development. This volume, pp. 1-30.
2. Weston, R. J. and Carruthers, T. G. Proceedings of the British Ceramic Society, 22 (1973) 197.
3. Katz, R. N. and Gazza, G. In Nitrogen Ceramics, Riley, F. L. (Ed.), Noordhoff, Leyden, p. 417, 1977.
4. Berrin, L., Johnson, D. W. and Nitti, D. J. American Ceramic Society Bulletin, 51 (1972) 840.
5. Gazzara, C. P. and Messier, D. R. American Ceramic Society Bulletin, 56 (1977) 111.