1. Geometrical product specifications (GPS) – geometrical tolerancing – tolerances of form, orientation, location and run-out;ISO 1101,2012
2. Geometrical product specifications (GPS) – roundness – part 1: vocabulary and parameters of roundness;ISO 12181-1,2011
3. State of art in standardization in GPS area;Humienny;CIRP J Manuf Sci Technol,2009
4. Geometrical product specifications (GPS) – general concepts – part 1: model for geometrical specification and verification;ISO 17450-1,2011
5. Geometrical product specifications (GPS) – general concepts – part 2: basic tenets, specifications, operators, uncertainties and ambiguities;ISO 17450-2,2012