search query: @instructor Virtanen, Markku / total: 7
references: 5-7 / 7
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| title | year | author | ||
| 5. | 1993 | Lauri, Hannu |
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| 6. | 1989 | Marttunen, Mika |
||
| 7. | 1987 | Karvonen, Marja-Liisa |
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INSSI
| title | year | author | ||
| 5. | 1993 | Lauri, Hannu |
||
| 6. | 1989 | Marttunen, Mika |
||
| 7. | 1987 | Karvonen, Marja-Liisa |