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| | L1606-L1608 (Site not responding. Last check: 2007-10-30) |
 | | Kengo Ohkura, Hidehito Mukai, Takeshi Hikata, Munetsugu Ueyama, Takeshi Kato, Jun Fujikami and Ken-ichi Sato |
 | | K. Sato, N. Shibuta, H. Mukai, T. Hikata, M. Ueyama, T. Kato and J. Fujikami: Cryogenics 33 (1993) 243. |
 | | H. Mukai, K. Ohkura, N. Shibuta, T. Hikata, M. Ueyama, T. Kato, J. Fujikami, K. Muranaka and K. Sato: Adv. |
| jjap.ipap.jp /link?JJAP/32/L1606 (186 words) |
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