1. Liu Wenwen , Ge Leyi. Measurement Uncertainty Digital Evaluation for Virtual Instrument Based on Monte Carlo Method. Journal of Electronic Measurement and Instrument [J], Volume 21, Issues 3, (2007).
2. Defen Zhang, Paul G. Maropoulos, Martyn Hill. Random uncertainty propagation in estimates of ball parameters from coordinate measurements, international journal of machine tools &manufacture [J], Volume 46, Issues 12-13, October 2006, Pages 1362-1368.
3. Ding Zhenliang. Errors and data processing, [M], Harbin: Harbin Institute of Technology Press,2002, 5.
4. Dovmark J. New interesting concepts from ISO/TC 213. In: ACMC annual general meeting in Ottawa, Canada, December 3, (2001).
5. Wang Jinxing. Uncertainty theory and its application in the improved Geometrical Product Specifications (GPS) [D]. Huazhong University of Science and Technology, (2006).