Unknown
Tsuji, T
;
Uruga, T
;
Nitta, K
;
[et al.]
Kawamura, N
;
Mizumaki, M
;
Suzuki, M
;
Sekizawa, O
;
Ishiguro, N
;
Tada, M
;
Ohashi, H
;
Yamazaki, H
;
Yumoto, H
;
Koyama, T
;
Senba, Y
;
Takeuchi, T
;
Terada, Y
;
... and further 7
Institute of Physics