1. Comparison between toroidal and conic surfaces that best fit an off-axis conic section
2. Computer numeric control generation of toric surfaces
3. Ion beam figuring of small optical components
4. Richardson, E. H. 1992.Laser Guide Star Adaptive Optics Workshop: Proceedings, Edited by: Fugate, R. Q. Vol. 1, 378Albuquerque, NM: Phillips Laboratory, Kirtland AFB.
5. Richardson, E. H. 1994.Adaptive Optics for Astronomy, NATO ASI Series Edited by: Alloin, D. M. and Mariotti, J. M. 227Dordrecht, The Netherlands: Kluwer Academic Publisher.