Author | Ishihara, Toru/ |
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Journal Title | Journal of mathematics, Tokushima University |
Volume | 21 |
Start Page | 1 |
Published Date | 1988-01-31 |
Author | Ohmiya, Mayumi/ |
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Journal Title | Journal of mathematics, Tokushima University |
Volume | 21 |
Start Page | 13 |
Published Date | 1988-01-31 |