1. G. D. Quinn, in ?Ceramic Materials and Components for Engines?, edited by W. Bunk and H. Hausner, (Deutsche Keramische Gesellschaft, Berlin, 1986) p. 931.
2. R. K. Govila,J. Mater. Sci. 20 (1985) 4345.
3. G. D. Quinn,Static Fatigue of a Sintered Silicon Nitride, US Army Materials Technology Laboratory, Technical Report TR 84-40 (1984).
4. I. Oda, M. Matsui andT. Soma in ?Progress in Nitrogen Ceramics?, edited by F. Riley, (Martinus-Nijhoff, Boston, 1983) p. 501.
5. M. Foley andR. Tressler, in ?Ceramic Materials and Components for Engines?, (The American Ceramic Society, Westerville, Ohio, 1989) p. 457.