search query: @instructor Heikkilä, Heikki / total: 5
references: 1-5 / 5
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title | year | author | ||
1. | 2002 | Forsell, Marko |
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2. | 1988 | Peuhkuri, Jari |
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3. | 1983 | Vaskikari, Päivi |
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4. | 1982 | Suominen, Seija |
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5. | 1981 | Roikonen, Matti |
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