search query: @instructor Hyyppä, Hannu / total: 10
references: 9-10 / 10
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title | year | author | ||
9. | 1990 | Kettunen, Sari |
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10. | 1989 | Talvitie, Tuomo |
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INSSI
title | year | author | ||
9. | 1990 | Kettunen, Sari |
||
10. | 1989 | Talvitie, Tuomo |