search query: @instructor Isotalo, Ilmo / total: 6
references: 5-6 / 6
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| title | year | author | ||
| 5. | 1988 | Poukka, Ari |
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| 6. | 1983 | Piirainen, Paula |
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INSSI
| title | year | author | ||
| 5. | 1988 | Poukka, Ari |
||
| 6. | 1983 | Piirainen, Paula |