1. Productive Metrology — Adding Value to Manufacture;Kunzmann;Annals of the CIRP,2005
2. Measurement Management Systems. Requirements for Measurement Processes and Measuring Equipment;ISO 10012:2003,2003
3. Villeta, M (2008), Análisis Integrado del Aseguramiento Estadístico de Calidad en Sistemas de Medición, PhD Thesis, Department of Manufacturing Engineering, National University of Distance Education (UNED), Madrid, Spain.
4. Functional Tolerance and Measuring Uncertainty;Berndt;Scientific Magazine of the Technical University Dresden,1968
5. International Vocabulary of Metrology — Basic and General Concepts and Associated Terms (VIM), Working Group 2 of the Joint Committee for Guides in Metrology (JGCM/WG 2);JCGM 200:2008 (E/F),2008