1. Diffractals;Berry;J. Phys.,1979
2. Strongly Anisotropic Surfaces;Bush;ASME Paper 78-Lub-16,1978
3. Contact of Nominally Flat Surfaces;Greenwood,1966
4. Contact Mechanics;Johnson,1985
5. Some Topographic Features of the Wear Process —Theory and Experiment;King;Annals of the CIRP,1977