search query: @author Penttinen, Ilkka / total: 3
references: 1-3 / 3
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title | year | author | ||
1. | 1996 | Penttinen, Ilkka |
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2. | 1986 | Penttinen, Ilkka |
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3. | 1972 | Penttinen, Ilkka |
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