search query: @instructor Ikkala, Olli / total: 18
references: 17-18 / 18
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title | year | author | ||
17. | 1992 | Hietaoja, Pirjo |
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18. | 1988 | Lahdentausta, Petri |
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title | year | author | ||
17. | 1992 | Hietaoja, Pirjo |
||
18. | 1988 | Lahdentausta, Petri |