1. ISO. Guide to the expression of uncertainty in measurement (GUM). Geneva: International Organization for Standardization (ISO), 1995.
2. VDI/VDE 2617. Accuracy of coordinate measuring machines. Characteristic parameters and their checking. Part 2.1. Measurement task-specific measurement uncertainty. Length measurement uncertainty. Düsseldorf: Verein Deutscher Ingenieure (VDI/VDE), 1986.
3. VDI/VDE 2617. Accuracy of coordinate measuring machines. Characteristic parameters and their checking. Part 3. Components of measurement deviation of the machine. Düsseldorf: Verein Deutscher Ingenieure (VDI/VDE), 1989.
4. ASME B89.4.1-1997. Methods for performance evaluation of coordinate measuring machines. New York: American Society of Mechanical Engineers, 1997. (Formerly ANSI/ASME B89.1.12M).
5. ISO 10360. Coordinate metrology. Part 2: Performance assessment of coordinate measuring machines, 1st ed. Geneva: International Organization for Standardization (ISO), 1994.