1. Indentation fracture: principles and applications
2. 2B. R. Lawn, D. B. Marshall, R. C. Bradt, D. P. H. Hasselman, and F. F. Lange ; pp.205 -29 inFracture Mechanics of Ceramics , Vol. 3 . Plenum, New York, 1978 .
3. 4A. G. Evans ; pp.303 -31 in Ref. 2.
4. 5M. V. Swain ; pp.257 -72 in Ref. 2.