1. International Organiation for Standarization (1985) ISO 129?1985(E) Technical drawings ? dimensioning ? general principles, definitions, methods of execution and special indications
2. American Society of Mechanical Engineers (1982) ANSI Y14.5M-1982 Dimensioning and Tolerancing
3. British Standards Institution (1985) BS308 Part 2: Recommendations for dimensioning and tolerancing of size
4. International Organization for Standardization (1985) ISO 8015?1985(E) Technical drawings-fundamental tolerancing principle
5. International Organization for Standardization (1988) ISO 2692?1988(E) Technical drawings ? geometrical tolerancing ? maximum material principle