search query: @supervisor Koppinen, Ilmari / total: 52
references: 51-52 / 52
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| title | year | author | ||
| 51. | 1974 | Vehniäinen, Pekka |
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| 52. | 1974 | Punkari, Antti |
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INSSI
| title | year | author | ||
| 51. | 1974 | Vehniäinen, Pekka |
||
| 52. | 1974 | Punkari, Antti |