1. See articles in Mat. Res. Soc. Symp. Proc., 130, (1989), J.L. BRAVMAN, W.D. NIX, D.M. BARNETT, D.A. SMITH.
2. See articles in Mat. Res. Soc. Symp. Proc., 140 ( 1989 ), L.E. POPE, L.L. FEHRENBACHER, W.O. WINER (Materials Reasearch Society Pittsburg ) (1989)
3. F.P. BOWDEN and D. TABOR, “Friction and Lubrication of Solids”, Clarendon Press Oxford, (1950).
4. P.J. BLAU, B.R. LAWN, Eds, “Microindentation Techniques in Materials Science and Engineering” ( American Society for Testing and Materials, Philadelphia ), (1986).
5. J.B. PETHICA, R. HUTCHINGS, W.C. OLIVER, Phil. Mag. A, 48, 4, 593, (1983).