| article html file updated | 6 February 2020 05:38 CET | Update | https://www.mdpi.com/1422-0067/14/11/22826 |
| article html file updated | 7 May 2019 21:57 CEST | Update | - |
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| article html file updated | 9 December 2013 09:06 CET | Original file | - |
| article xml file uploaded | 9 December 2013 09:05 CET | Original file | https://www.mdpi.com/1422-0067/14/11/22826/xml |
| article pdf uploaded. | 22 November 2013 14:36 CET | Updated version of record | https://www.mdpi.com/1422-0067/14/11/22826/pdf |
| article pdf uploaded. | 19 November 2013 11:30 CET | Version of Record | https://www.mdpi.com/1422-0067/14/11/22826/pdf-vor |