1. A.M.F. Fernando, Challenges to Prove the Quality of Measurements in High-Accuracy Coordinate Measuring Machines - A Practical Approach. IXth International Scientific Conference, Bielsko, Poland, 2010.
2. International standard ISO 10360-2:2009, Geometrical product specifications (GPS) - Acceptance and reverification tests for coordinate.measuring machines (CMM) - Part 2: CMMs used for measuring linear dimensions.
3. International standard ISO/IEC 17025:2005, General requirements for the competence of testing and calibration laboratories; NIELSEN, Henrik S., The ISO Geometrical Product Specifications Handbook. USA, 2012.
4. O.V. Jesús, Incertidumbres en Metrología por Coordenadas. Madrid, Spain, 2005.
5. S.P. Ángel María, Fundamentos de Metrología. Madrid, Spain, 1999.