1. J. Fujikami, N. Saga, K Ohmatsu, T. Shibata, M. Watanabe, C Suzawa, S. Isojima, K Sato, H Ishii, S. Honjo, andT. Haia: submitted to ICEC16/ICMC(1996).
2. M. Mimura, R Ii, K. Kosugi, Y. Tanaka, N. Uno, and K Satou: Advances in Superconductivity XII, p 859 (1995).
3. M Karuna, W. Zhang, E. E. Hellstoim, and D. C Laibalestien Advances in Ctyogenic Engineeiing, vol. 42
4. G. B. Galinsld, G. M Ozoyansky, L. R. Motowidlo: Advances in Qyogenic Engineering, vol. 42 (1996)
5. T. Kaneko, S. Kabayadii, K Hayasfai, and K Sato: Advances in Snjetconductivity IX, p 907 (1996).