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| article xml file uploaded | 29 January 2015 07:43 CET | Original file | https://www.mdpi.com/2072-4292/7/1/990/xml |
| article pdf uploaded. | 21 January 2015 09:54 CET | Updated version of record | https://www.mdpi.com/2072-4292/7/1/990/pdf |
| article pdf uploaded. | 16 January 2015 12:13 CET | Version of Record | https://www.mdpi.com/2072-4292/7/1/990/pdf-vor |
