search query: @instructor Lehtinen, Antti / total: 6
references: 4-6 / 6
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| title | year | author | ||
| 4. | 1967 | Kalela, Kimmo |
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| 5. | 1966 | Kuula, Timo |
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| 6. | 1965 | Sinervä, Juhani |
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INSSI
| title | year | author | ||
| 4. | 1967 | Kalela, Kimmo |
||
| 5. | 1966 | Kuula, Timo |
||
| 6. | 1965 | Sinervä, Juhani |