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S Noguchi
Dept. of Physics and Electronics, Univversity of Osaka Pref.
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T Tanahashi
Dept. of Physics and Electronics, Univversity of Osaka Pref.
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H Yamashita
Dept. of Physics and Electronics, Univversity of Osaka Pref.
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K Okuda
Dept. of Physics and Electronics, Univversity of Osaka Pref.