1. See for instance C. Pellegrini, Electron-Positron Colliders in the TeV Region, in Proceedings of the 1985 International Symposium on Lepton and Photon Interactions at High Energies, M. Konuma and K. Takahashi, Kyoto 1985.
2. Progress toward a soft X-ray FEL
3. Status of the SLC Damping Rings
4. J. S. Fraser et al., Photocathodes in Accelerator Applications, in Proc. 1987 IEEE Particle Accelerator Conference, E. Lindstrom and L. S. Taylor, p. 1705, Washington 1987.
5. The Stanford Mark III infrared free electron laser