1. S. Kurokawa, presented at HEACC98.
2. N. Toge, presented at HEACC98.
3. F. Hinode et al. (Eds.), KEK Internal 95-4, June 1995.
4. J. Urakawa, KEK/ATF Damping Ring, PAC97, Vancouver, May 1997, pp. 444–448.
5. H. Hayano, The 11th symposium on accelerator science and technology.