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| article xml file uploaded | 7 January 2014 12:36 CET | Original file | https://www.mdpi.com/1999-4915/5/11/2856/xml |
| article pdf uploaded. | 25 November 2013 09:42 CET | Updated version of record | https://www.mdpi.com/1999-4915/5/11/2856/pdf |
| article pdf uploaded. | 22 November 2013 12:39 CET | Version of Record | https://www.mdpi.com/1999-4915/5/11/2856/pdf-vor |
