1. Methods for Performance Evaluation of Computer Numerically Controlled Machining Centers;ASME B5.54,2005
2. Test Code for Machine Tools – Part 1: Geometric Accuracy of Machines Operating Under No-Load or Quasi-Static Conditions;ISO 230-1,2012
3. Test Code for Machine Tools – Part 2: Determination of Accuracy and Repeatability of Positioning Numerically Controlled Axes;ISO 230-2,2006
4. Accuracy Inspection of NC Machine Tools by Double Ball Bar Method;Kakino,1993
5. R-Test, A New Device for Accuracy Measurements on Five Axis Machine Tools;Weikert;CIRP Annals,2004