1. 1) KEKB B-Factory Design Report, KEK Report 95-7, August 1995.
2. 2) Belle Technical Design Report, KEK Report 95-1, April 1995.
3. 3) K. Kanazawa, H. Nakayama, T. Ogitsu, N. Ohuchi, T. Ozaki, K. Satoh, R. Sugahara, M. Tawada, N. Toge, K. Tsuchiya, Y. Yamada, M. Yoshida and M. Yoshioka: “The interaction region of KEKB,” Nucl. Instr. Meth. Phys. Res. A 499 (2003) 75-99
4. 4) Y. Makida, H. Yamaoka, Y. Doi, J. Haba, F. Takasaki and A. Yamamoto: “Development of a superconducting solenoid magnet system for the B-Factory detector (BELLE),” Adv. Cryo. Eng. 43A (1998) 221-228
5. 5) K. Tsuchiya, N. Ohuchi, Y. Morita, R. Sugahara, A. Kabe, K. Endo, S. Kawamura and K. Matsumoto: “Helium cryogenic systems for the superconducting insertion quadrupole magnets of the TRISTAN storage ring,” Adv. Cryo. Eng. 37A (1992) 667-674