search query: @instructor Riionheimo, Yrjö / total: 4
references: 1-4 / 4
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| title | year | author | ||
| 1. | 2002 | Harja, Lasse |
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| 2. | 1989 | Yrjolä, Manu Valtteri |
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| 3. | 1986 | Tyni, Jukka |
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| 4. | 1983 | Nylen, Jari |
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