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- Tanaka Riki
- Nagaoka University of Technology
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- Shirai Kenji
- Niigata University of International and Information Studies
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- Takahashi Hirotaka
- Nagaoka University of Technology
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Journal
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- ICIC Express Letters, Part B: Applications
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ICIC Express Letters, Part B: Applications 10 (04), 327-, 2019
ICIC International