| article html file updated | 9 January 2020 11:07 CET | Update | https://www.mdpi.com/2073-8994/7/2/774 |
| article html file updated | 20 September 2019 21:59 CEST | Update | - |
| article html file updated | 6 March 2017 06:26 CET | Update | - |
| article html file updated | 21 August 2015 12:43 CEST | Update | - |
| article html file updated | 7 July 2015 09:41 CEST | Original file | - |
| article xml file uploaded | 7 July 2015 09:41 CEST | Original file | https://www.mdpi.com/2073-8994/7/2/774/xml |
| article pdf uploaded. | 27 May 2015 14:45 CEST | Version of Record | https://www.mdpi.com/2073-8994/7/2/774/pdf |
