1. ASME Y14.5-2009, Dimensioning and Tolerancing - Engineering Drawing and Related Documentation Practices, American Society of Mechanical Engineers.
2. ISO 1101: 2017, Geometrical Product Specifications (GPS) - Geometrical tolerancing - Tolerances of form, orientation, location and run-out, The International Organization for Standardisation.
3. Minimum zone evaluation of surfaces;Murthy;Int. J. Mach. Tool. Des. Res.,1980
4. An evaluation of roundness from minimum zone centre by means of an optimization technique;Tsukada;Bull. Japan Soc. Precis. Eng.,1984
5. A comparison of different algorithms for circularity evaluation;Murthy;Precis. Eng.,1986