1. Proceedings of the 1st European Particle Accelerator Conference;Jaeschke,1989
2. CRYRING — a synchrotron, cooler and storage ring
3. Proceedings of 1993 Particle Accelerator Conference;Møller,1993
4. Proceedings of the 4th European Particle Accelerator Conference;Blasche,1994
5. Electron cooling: Theory, experiment, application