| article html file updated | 13 August 2026 04:26 CEST | Update | https://www.mdpi.com/1996-1073/7/9/6118 |
| article html file updated | 6 February 2020 12:24 CET | Update | N/A |
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| article html file updated | 22 October 2014 07:37 CEST | Original file | N/A |
| article xml file uploaded | 22 October 2014 07:37 CEST | Original file | https://www.mdpi.com/1996-1073/7/9/6118/xml |
| article pdf uploaded. | 25 September 2014 15:45 CEST | Updated version of record | https://www.mdpi.com/1996-1073/7/9/6118/pdf |
| article pdf uploaded. | 23 September 2014 08:14 CEST | Version of Record | https://www.mdpi.com/1996-1073/7/9/6118/pdf-vor |
