1. 1) 吉田一朗: 表面粗さ―その測定方法と規格に関して―,精密工学会誌,78, 4 (2012) 301.
2. 2) ISO 16610, Geometrical product specifications (GPS) – Filtration - Part 21: Liner profile filters: Gaussian filters (2011).
3. 3) ISO 16610, Geometrical product specifications (GPS) – Filtration – Part 22: Liner profile filters: Spline filters (2015).
4. 4) M. Krystek: Form filtering by splines, Mesurement, 18, 1 (1996) 9.
5. 5) ISO 16610, Geometrical product specifications (GPS) – Filtration – Part 28: Profile filters: End effects (2016).