search query: @instructor Ehtamo, Harri / total: 26
references: 23-26 / 26
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title | year | author | ||
23. | 1992 | Jauri, Osmo |
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24. | 1992 | Verkama, Markku |
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25. | 1990 | Verkama, Markku |
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26. | 1987 | Karanta, Ilkka |
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