| article html file updated | 20 August 2015 19:20 CEST | Update | https://www.mdpi.com/1424-8220/14/9/17275 |
| article html file updated | 24 October 2014 07:52 CEST | Original file | - |
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| article pdf uploaded. | 17 September 2014 08:18 CEST | Updated version of record | https://www.mdpi.com/1424-8220/14/9/17275/pdf |
| article pdf uploaded. | 16 September 2014 12:52 CEST | Version of Record | https://www.mdpi.com/1424-8220/14/9/17275/pdf-vor |
