Kobayasi, Y.; Ôkubo, M. 1954: Bulletin of the National Science Museum 1(2)
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| Kobayasi, Y.; Ôkubo, M. 1954: Bulletin of the National Science Museum 1(2) |
| Kobayasi, Y.; Ôkubo, M. 1954: Bulletin of the National Science Museum 1(2) |