H. S. LEE, T. YAMADA and M. KOBAYASHI, DEVELOPMENT OF A 3-D MEASURING EQUIPMENT FOR SURFACE GEOMETRIES OF GRINDING WHEEL SURFACES, Proceedings of the ASPE 2006 Annual Meeting, 2006.10, CD/ROM.
ISO 25178-6:2010, Geometrical product specifications (GPS) - Surface texture: Areal - Part 6: Classification of methods for measuring surface texture.