search query: @instructor Raikko, J. / total: 2
references: 1-2 / 2
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title | year | author | ||
1. | 1980 | Penttala, Rainer |
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2. | 1969 | Koskela, Jaakko |
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INSSI
title | year | author | ||
1. | 1980 | Penttala, Rainer |
||
2. | 1969 | Koskela, Jaakko |