search query: @keyword energy system / total: 4
references: 1-4 / 4
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title | year | author | ||
1. | 2014 | Ant-Wuorinen, Risto |
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2. | 2003 | Holttinen, Hannele |
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3. | 1998 | Tuhkanen, Sami |
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4. | 1995 | Kakko, Urpo |
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