search query: @keyword paper strength / total: 3
references: 1-3 / 3
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title | year | author | ||
1. | 2013 | Köylijärvi, Sampo |
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2. | 2012 | Saranpää, Emmi-Kaisa |
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3. | 2007 | Kari, Timo Gunnar |
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