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| Παράγοντες που συμβάλουν στην υποβάθμιση των εδαφικών πόρων | 47 |
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| STEG_FP_00497_Medium.pdf | 187 |
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| United States of America | 25 |
| United Kingdom | 9 |
| Germany | 6 |
| Ukraine | 5 |
| Greece | 1 |
| Italy | 1 |
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| Seattle | 4 |
| Mountain View | 3 |
| Woodbridge | 2 |
| Milan | 1 |
| Southend | 1 |