Unknown
Matsuta, K
;
Fujiwara, H
;
Nagatomo, T
;
[et al.]
Mihara, M
;
Kumashiro, S
;
Nakashima,
;
Ogura, M
;
Momota, S
;
Ohtsubo, T
;
Ohta, M
;
Kitagawa, A
;
Kanazawa, M
;
Torikoshi, M
;
Sato, S
;
Fukuda, M
;
Minamisono, T
;
... and further 7
Institute of Physics