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Tatsuo Kobayashi
College of Liberal Arts Kobe Univ.
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Shinji Wada
College of Liberal Arts Kobe Univ.
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Yoshio Kitaoka
Dep. Mat. Phys., Fac. Eng. Sci., Osaka Univ.
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Kunisuke Asayama
Dep. Mat. Phys., Fac. Eng. Sci., Osaka Univ.
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Kiichi Amaya
Dep. Mat. Phys., Fac. Eng. Sci., Osaka Univ.