search query: @supervisor Varpasuo, Pentti / total: 18
references: 16-18 / 18
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title | year | author | ||
16. | 1980 | Kinnunen, Martti |
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17. | 1980 | Helenius, Antti |
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18. | 1980 | Kinnunen, Jukka |
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