1. The Fractal Geometry of Nature;Mandelbrot,1982
2. Digital Analysis of very Small Scale Surface Roughness;Thomas;Journal of Wave-Material Interaction,1988
3. Fractals, Engineering Surfaces and Tribology;Ling;Wear,1990
4. Role of Fractal Geometry in Roughness Characterization and Contact Mechanics of Surfaces;Majumdar;ASME J. of Tribology,1990
5. Statistical, Random and Fractal Characterizations of Surface Topography with Engineering Applications;Zhou,1992