1. ISO 10110-12, Optics and photonics – Preparation of drawings for optical elements and systems – Part 12: Aspheric surfaces.
2. R. Schuhmann, OSA IODC 2017, Proc. of SPIE-OSA 10590, 105900H-1-H7 (2017).
3. ISO 10110-19, Optics and photonics – Preparation of drawings for optical elements and systems – Part 19: General description of surfaces and components.
4. R. Schuhmann, Doctoral Thesis (Optical Institute, Technical University Berlin, D83, Berlin, 1985).
5. J. Kross and R. Schuhmann, Optik 70, 76–85 (1985).