1. S. M. Wiederhorn, in ?Fracture Mechanics of Ceramics? Vol 2, edited by R. C. Bradt, D. P. H. Hasselman, and F. F. Lange (Plenum Press, New York, 1974) pp. 613?45.
2. A. G. Evans andS. M. Wiederhorn,Int. J. Fract. 10 (1974) 379.
3. S. M. Wiederhorn, in ?Ceramics for High Performance Applications? edited by J. Burke, A. E. Gorum and R. N. Katz (Brook Hill Publishing Co., Chestnut Hill, Mass., 1974) pp. 633?63.
4. J. E. Ritter, Jr, in ?Fracture Mechanics of Ceramics? Vol. 4, edited by R. C. Bradt, D. P. H. Hasselman and F. F. Lange (Plenum Press, New York, 1978) pp. 633?86.
5. S. M. Wiederhorn, E. R. Fuller, Jr, J. Mandel andA. G. Evans,J. Amer. Ceram. Soc. 59 (1976) 403.