| article html file updated | 6 February 2020 12:45 CET | Update | https://www.mdpi.com/1996-1073/7/10/6477 |
| article html file updated | 20 September 2019 13:39 CEST | Update | - |
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| article html file updated | 10 November 2014 11:17 CET | Original file | - |
| article xml file uploaded | 10 November 2014 11:17 CET | Original file | https://www.mdpi.com/1996-1073/7/10/6477/xml |
| article pdf uploaded. | 10 October 2014 15:14 CEST | Version of Record | https://www.mdpi.com/1996-1073/7/10/6477/pdf |
