search query: @instructor Hannukainen, Osmo / total: 3
references: 1-3 / 3
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| title | year | author | ||
| 1. | 1992 | Wickström, Minna |
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| 2. | 1990 | Kemppinen, Pia |
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| 3. | 1989 | Vanhatalo, Leena K. |
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