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Inventories and Work in Progress (Tables) | 12 Months Ended
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Dec. 31, 2017
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Summary of Inventories |
|  | December 31, |
|  | 2015 |  |  | 2016 |  |  | 2017 |
|  | (thousands of Euros) |
Inventories of raw materials |  |  | 69 |  |  |  | 69 |  |  |  | — |
Depreciation of inventories |  |  | (69 | ) |  |  | (69 | ) |  |  | — |
Total net value of the inventories |  |  | — |  |  |  | — |  |  |  | — |

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