1. ISO 1101:2017 Geometrical product specifications (GPS)-Geometrical tolerancing-Tolerances of form, orientation, location and run-out,2017
2. Anwer N, Cid G, Mathieu L. XML based tolerance management for integrated design. In: 2003 International CIRP design seminar, CDROM paper. 2003. p. 12–4.
3. ISO 17450-1:2011 Geometrical product specifications (GPS) — General concepts — Part 1: Model for geometrical specifications and verification,2011
4. A geometrical product specification language based on a classification of symmetry groups;Srinivasan;Comput Aided Des,1999
5. ISO 8015:2011 Geometrical product specifications (GPS) — Fundamentals — Concepts, principles and rules,2011