search query: @instructor Vaurio, Erkki / total: 2
references: 1-2 / 2
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| title | year | author | ||
| 1. | 1989 | Soininen, Antti |
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| 2. | 1980 | Manninen, Pekka Kalevi |
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| title | year | author | ||
| 1. | 1989 | Soininen, Antti |
||
| 2. | 1980 | Manninen, Pekka Kalevi |