search query: @freeterm porter hypothesis / total: 2
references: 1-2 / 2
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title | year | author | ||
1. |
Journal of Environmental Economics and Management
2008 : NOV, VOL. 56:3 p. 246-259 |
2008 | Greaker M., Rosendahl K. E., |
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2. |
Journal of Environmental Management
2005 : OCT, VOL. 77:2, p. 104-110 |
2005 | Lee, M. |
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