1. Standard EN 13005, Guide to the Expression of Uncertainty in Measurement, 1998.
2. The influence of measurement strategy on the uncertainty of CMM-measurements;Weckenmann;Ann. CIRP,1998
3. Standard ISO 14253-1, Geometrical product specification (GPS) — inspection by measurement of workpieces and measuring equipment, Part 1: decision rules for proving conformance or non-conformance with specification, 1997.
4. A. Weckenmann, M. Knauer, Causes and consequences of measurement uncertainty in production metrology, in: P.H. Osanna (Ed.), Proceedings of the Sixth ISMQC IMEKO Symposium on Metrology for Quality Control in Production, Vienna, 1998, pp. 337–343.
5. E. Dietrich, A. Schulze, Guidelines for the Evaluation of Measurement Systems and Processes, Acceptance of Production Facilities, Hanser, Munich, 1998.