search query: @instructor Laitakari, Pertti / total: 2
references: 1-2 / 2
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title | year | author | ||
1. | 1983 | Aavikko, Pekka |
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2. | 1981 | Unkuri, Heikki |
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title | year | author | ||
1. | 1983 | Aavikko, Pekka |
||
2. | 1981 | Unkuri, Heikki |