1. ISO 17450-1:2011 Geometric ProductSpecification-General concepts-Part 1: Model for geometrical specification and verification, 2011.
2. ISO 17450-2:2012 Geometric Product Specification-General concepts—Part 2: Basic tenets, specifications, operators, uncertainties and ambiguities, 2012.
3. ISO 14638:2015 Geometrical product specifications (GPS)—Matrix model, 2015.
4. Geometrical product specifications—model for product life cycle;Dantan;Comput Des,2008
5. A model for a coherent and complete tolerancing process;Mathieu,2007