search query: @instructor Ristolainen, Eero / total: 4
references: 1-4 / 4
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title | year | author | ||
1. | 1981 | Paju, Martti Jarmo Kalervo |
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2. | 1981 | Lehtinen, Veli-Matti |
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3. | 1979 | Hirvonen, Yrjö |
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4. | 1978 | Grönblom, Jukka Sakari |
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