1. American National Standards ANSI B89.3.1 1972: Measurement of Out-of-Roundness,1979
2. American National Standards ANSI Y14.5 1982: Dimensioning and Tolerancing,1982
3. Characterizations of Inner Product Spaces;Amir,1986
4. Some aspects of measurement of roundness;Andulov,1968
5. Measurement of the spherical tip of rockwell indenters;Barbato;J. Test. Eval.,1988