1. K.L. Johnson, Contact Mechanics (Cambridge University Press, Cambridge, 1985)
2. K.L. Johnson, Contact mechanics and the wear of metals. Wear 190, 162–170 (1995)
3. G.M. Hamilton, Proc. Instn. Mech. Engrs. 197, 53–59 (1983) (point contact)
4. J.O. Smith, C.K. Liu, J. Appl. Mech. 20, 157–168 (1953) (line contact)
5. S.C. Lim, M.F. Ashby, Wear-Mech. Maps. Acta Metall. 35, 1–24 (1987)