search query: @author Heikkinen, Risto / total: 3
references: 1-3 / 3
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| title | year | author | ||
| 1. | 1982 | Heikkinen, Risto |
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| 2. | 1977 | Heikkinen, Risto |
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| 3. | 1969 | Heikkinen, Risto |
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INSSI
| title | year | author | ||
| 1. | 1982 | Heikkinen, Risto |
||
| 2. | 1977 | Heikkinen, Risto |
||
| 3. | 1969 | Heikkinen, Risto |