search query: @instructor Vihervuori, Pekka / total: 3
references: 1-3 / 3
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title | year | author | ||
1. | 2000 | Yli-Laurila, Matti |
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2. | 1988 | Viljanmaa, Pentti |
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3. | 1983 | Siitonen, Hannu V. |
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