| article html file updated | 6 February 2020 13:05 CET | Update | https://www.mdpi.com/1996-1073/7/10/6823 |
| article html file updated | 20 September 2019 14:04 CEST | Update | - |
| article html file updated | 7 May 2019 06:37 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/1996-1073/7/10/6823/xml |
| article pdf uploaded. | 23 October 2014 16:38 CEST | Version of Record | https://www.mdpi.com/1996-1073/7/10/6823/pdf |
