Hokkaido University (北海道大学) / 博士 / 理学
| Identifer | oai:union.ndltd.org:HOKKAIDO/oai:eprints.lib.hokudai.ac.jp:2115/32542 |
| Date | 25 March 1989 |
| Creators | 高橋, 正行 |
| Source Sets | Hokkaido University Japan |
| Language | Japanese |
| Detected Language | Japanese |
| Type | theses (doctoral) |
| Format | 112p. |
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