| Author | Ishihara, Toru/ |
|---|---|
| Journal Title | Journal of mathematics, the University of Tokushima |
| Volume | 36 |
| Start Page | 1 |
| Published Date | 2003-02-25 |
| Author | Ito, Yoshifumi/ |
|---|---|
| Journal Title | Journal of mathematics, the University of Tokushima |
| Volume | 36 |
| Start Page | 7 |
| Published Date | 2003-02-25 |