1. Prism and Lens Making;Twyman,1952
2. X ray optics at the NPL
3. A. Franks, K. Lindsey, J.M. Bennett, R.J. Speer, D. Turner and D.J. Hunt, Phil. Trans. Roy. Soc. London, in the press.
4. Optical Production Technology;Horne,1972
5. Conventional Optical Polishing Techniques