| article html file updated | 6 February 2020 03:26 CET | Update | https://www.mdpi.com/2072-4292/5/8/3681 |
| article html file updated | 8 May 2019 02:27 CEST | Update | - |
| article html file updated | 21 March 2019 01:55 CET | Update | - |
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| article html file updated | 14 August 2014 12:06 CEST | Update | - |
| article xml file uploaded | 14 August 2014 12:06 CEST | Update | https://www.mdpi.com/2072-4292/5/8/3681/xml |
| article html file updated | 11 September 2013 16:31 CEST | Original file | - |
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| article pdf uploaded. | 29 July 2013 16:52 CEST | Updated version of record | https://www.mdpi.com/2072-4292/5/8/3681/pdf |
| article pdf uploaded. | 25 July 2013 11:18 CEST | Version of Record | https://www.mdpi.com/2072-4292/5/8/3681/pdf-vor |